The factors of the number 521,273,550 are: 1, 2, 3, 5, 6, 7, 10, 14, 15, 17, 19, 21, 25, 29, 30, 34, 35, 38, 42, 50, 51, 53, 57, 58, 70, 75, 85, 87, 95, 102, 105, 106, 114, 119, 133, 145, 150, 159, 170, 174, 175, 190, 203, 210, 238, 255, 265, 266, 285, 290, 318, 323, 350, 357, 371, 399, 406, 425, 435, 475, 493, 510, 525, 530, 551, 570, 595, 609, 646, 665, 714, 725, 742, 795, 798, 850, 870, 901, 950, 969, 986, 1007, 1015, 1050, 1102, 1113, 1190, 1218, 1275, 1325, 1330, 1425, 1450, 1479, 1537, 1590, 1615, 1653, 1785, 1802, 1855, 1938, 1995, 2014, 2030, 2175, 2226, 2261, 2465, 2550, 2650, 2703, 2755, 2850, 2958, 2975, 3021, 3045, 3074, 3230, 3306, 3325, 3451, 3570, 3710, 3857, 3975, 3990, 4350, 4505, 4522, 4611, 4845, 4930, 5035, 5075, 5406, 5510, 5565, 5950, 6042, 6090, 6307, 6650, 6783, 6902, 7049, 7395, 7685, 7714, 7950, 8075, 8265, 8925, 9010, 9222, 9275, 9367, 9690, 9975, 10070, 10150, 10353, 10759, 11130, 11305, 11571, 12325, 12614, 13515, 13566, 13775, 14098, 14790, 15105, 15225, 15370, 16150, 16530, 17119, 17255, 17850, 18550, 18734, 18921, 19285, 19950, 20706, 21147, 21518, 22525, 22610, 23055, 23142, 24225, 24650, 25175, 26129, 27030, 27550, 27825, 28101, 29203, 30210, 30450, 31535, 32277, 33915, 34238, 34510, 35245, 36975, 37842, 38425, 38570, 41325, 42294, 45050, 46110, 46835, 48450, 50350, 51357, 51765, 52258, 53795, 55650, 56202, 56525, 57855, 58406, 63070, 64554, 65569, 67575, 67830, 70490, 73950, 75525, 76850, 78387, 82650, 85595, 86275, 87609, 93670, 94605, 96425, 102714, 103530, 105735, 107590, 113050, 115275, 115710, 119833, 130645, 131138, 135150, 140505, 146015, 151050, 156774, 157675, 161385, 169575, 171190, 172550, 175218, 176225, 182903, 189210, 192850, 196707, 204421, 211470, 230550, 234175, 239666, 256785, 258825, 261290, 268975, 281010, 289275, 292030, 315350, 322770, 327845, 339150, 352450, 359499, 365806, 391935, 393414, 408842, 427975, 438045, 468350, 473025, 496451, 513570, 517650, 528675, 537950, 548709, 578550, 599165, 613263, 653225, 655690, 702525, 718998, 730075, 783870, 806925, 855950, 876090, 914515, 946050, 983535, 992902, 1022105, 1057350, 1097418, 1198330, 1226526, 1283925, 1306450, 1405050, 1460150, 1489353, 1613850, 1639225, 1797495, 1829030, 1959675, 1967070, 2044210, 2190225, 2482255, 2567850, 2743545, 2978706, 2995825, 3066315, 3278450, 3475157, 3594990, 3919350, 4380450, 4572575, 4917675, 4964510, 5110525, 5487090, 5991650, 6132630, 6950314, 7446765, 8987475, 9145150, 9835350, 10221050, 10425471, 12411275, 13717725, 14893530, 15331575, 17375785, 17974950, 20850942, 24822550, 27435450, 30663150, 34751570, 37233825, 52127355, 74467650, 86878925, 104254710, 173757850, 260636775, 521273550.
If you add them up, you will get the total of 521,273,551. Now subtract 521,273,550 to get 1,214,329,650