21302200

素因数分解:

$2^3\times 5^2\times {\mathrm{43}}^1\times {\mathrm{2477}}^1$

素因数の和:2536

約数の個数: 48

約数和(自身を含む): 50699880

約数和(自身を除く): 29397680

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 43, 50, 86, 100, 172, 200, 215, 344, 430, 860, 1075, 1720, 2150, 2477, 4300, 4954, 8600, 9908, 12385, 19816, 24770, 49540, 61925, 99080, 106511, 123850, 213022, 247700, 426044, 495400, 532555, 852088, 1065110, 2130220, 2662775, 4260440, 5325550, 10651100, 21302200]

約数ペア:

[(1, 21302200), (2, 10651100), (4, 5325550), (5, 4260440), (8, 2662775), (10, 2130220), (20, 1065110), (25, 852088), (40, 532555), (43, 495400), (50, 426044), (86, 247700), (100, 213022), (172, 123850), (200, 106511), (215, 99080), (344, 61925), (430, 49540), (860, 24770), (1075, 19816), (1720, 12385), (2150, 9908), (2477, 8600), (4300, 4954)]