21163780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{96199}}^1$

素因数の和:96219

約数の個数: 24

約数和(自身を含む): 48484800

約数和(自身を除く): 27321020

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 96199, 192398, 384796, 480995, 961990, 1058189, 1923980, 2116378, 4232756, 5290945, 10581890, 21163780]

約数ペア:

[(1, 21163780), (2, 10581890), (4, 5290945), (5, 4232756), (10, 2116378), (11, 1923980), (20, 1058189), (22, 961990), (44, 480995), (55, 384796), (110, 192398), (220, 96199)]