21265222

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{251}}^1\times {\mathrm{3851}}^1$

素因数の和:4115

約数の個数: 16

約数和(自身を含む): 34945344

約数和(自身を除く): 13680122

約数列:

[1, 2, 11, 22, 251, 502, 2761, 3851, 5522, 7702, 42361, 84722, 966601, 1933202, 10632611, 21265222]

約数ペア:

[(1, 21265222), (2, 10632611), (11, 1933202), (22, 966601), (251, 84722), (502, 42361), (2761, 7702), (3851, 5522)]