The factors of the number 21,076,560 are: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 73, 80, 90, 120, 144, 146, 180, 219, 240, 292, 360, 365, 401, 438, 584, 657, 720, 730, 802, 876, 1095, 1168, 1203, 1314, 1460, 1604, 1752, 2005, 2190, 2406, 2628, 2920, 3208, 3285, 3504, 3609, 4010, 4380, 4812, 5256, 5840, 6015, 6416, 6570, 7218, 8020, 8760, 9624, 10512, 12030, 13140, 14436, 16040, 17520, 18045, 19248, 24060, 26280, 28872, 29273, 32080, 36090, 48120, 52560, 57744, 58546, 72180, 87819, 96240, 117092, 144360, 146365, 175638, 234184, 263457, 288720, 292730, 351276, 439095, 468368, 526914, 585460, 702552, 878190, 1053828, 1170920, 1317285, 1405104, 1756380, 2107656, 2341840, 2634570, 3512760, 4215312, 5269140, 7025520, 10538280, 21076560.
If you add them up, you will get the total of 71,930,664.