21860080

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{24841}}^1$

素因数の和:24865

約数の個数: 40

約数和(自身を含む): 55447344

約数和(自身を除く): 33587264

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 24841, 49682, 99364, 124205, 198728, 248410, 273251, 397456, 496820, 546502, 993640, 1093004, 1366255, 1987280, 2186008, 2732510, 4372016, 5465020, 10930040, 21860080]

約数ペア:

[(1, 21860080), (2, 10930040), (4, 5465020), (5, 4372016), (8, 2732510), (10, 2186008), (11, 1987280), (16, 1366255), (20, 1093004), (22, 993640), (40, 546502), (44, 496820), (55, 397456), (80, 273251), (88, 248410), (110, 198728), (176, 124205), (220, 99364), (440, 49682), (880, 24841)]