The factors of the number 21,251,700 are: 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 25, 27, 30, 34, 36, 45, 50, 51, 54, 60, 68, 75, 85, 90, 100, 102, 108, 135, 150, 153, 170, 180, 204, 225, 255, 270, 300, 306, 340, 425, 450, 459, 463, 510, 540, 612, 675, 765, 850, 900, 918, 926, 1020, 1275, 1350, 1389, 1530, 1700, 1836, 1852, 2295, 2315, 2550, 2700, 2778, 3060, 3825, 4167, 4590, 4630, 5100, 5556, 6945, 7650, 7871, 8334, 9180, 9260, 11475, 11575, 12501, 13890, 15300, 15742, 16668, 20835, 22950, 23150, 23613, 25002, 27780, 31484, 34725, 39355, 41670, 45900, 46300, 47226, 50004, 62505, 69450, 70839, 78710, 83340, 94452, 104175, 118065, 125010, 138900, 141678, 157420, 196775, 208350, 212517, 236130, 250020, 283356, 312525, 354195, 393550, 416700, 425034, 472260, 590325, 625050, 708390, 787100, 850068, 1062585, 1180650, 1250100, 1416780, 1770975, 2125170, 2361300, 3541950, 4250340, 5312925, 7083900, 10625850, 21251700.
If you add them up, you will get the total of 21,251,751. Now subtract 21,251,700 to get 51,243,660