21113620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{95971}}^1$

素因数の和:95991

約数の個数: 24

約数和(自身を含む): 48369888

約数和(自身を除く): 27256268

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 95971, 191942, 383884, 479855, 959710, 1055681, 1919420, 2111362, 4222724, 5278405, 10556810, 21113620]

約数ペア:

[(1, 21113620), (2, 10556810), (4, 5278405), (5, 4222724), (10, 2111362), (11, 1919420), (20, 1055681), (22, 959710), (44, 479855), (55, 383884), (110, 191942), (220, 95971)]