21000188

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{477277}}^1$

素因数の和:477292

約数の個数: 12

約数和(自身を含む): 40091352

約数和(自身を除く): 19091164

約数列:

[1, 2, 4, 11, 22, 44, 477277, 954554, 1909108, 5250047, 10500094, 21000188]

約数ペア:

[(1, 21000188), (2, 10500094), (4, 5250047), (11, 1909108), (22, 954554), (44, 477277)]