21351344720

素因数分解:

$2^4\times 5^1\times {\mathrm{4637}}^1\times {\mathrm{57557}}^1$

素因数の和:62207

約数の個数: 40

約数和(自身を含む): 49653444744

約数和(自身を除く): 28302100024

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4637, 9274, 18548, 23185, 37096, 46370, 57557, 74192, 92740, 115114, 185480, 230228, 287785, 370960, 460456, 575570, 920912, 1151140, 2302280, 4604560, 266891809, 533783618, 1067567236, 1334459045, 2135134472, 2668918090, 4270268944, 5337836180, 10675672360, 21351344720]

約数ペア:

[(1, 21351344720), (2, 10675672360), (4, 5337836180), (5, 4270268944), (8, 2668918090), (10, 2135134472), (16, 1334459045), (20, 1067567236), (40, 533783618), (80, 266891809), (4637, 4604560), (9274, 2302280), (18548, 1151140), (23185, 920912), (37096, 575570), (46370, 460456), (57557, 370960), (74192, 287785), (92740, 230228), (115114, 185480)]