21250262

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{87811}}^1$

素因数の和:87835

約数の個数: 12

約数和(自身を含む): 35036988

約数和(自身を除く): 13786726

約数列:

[1, 2, 11, 22, 121, 242, 87811, 175622, 965921, 1931842, 10625131, 21250262]

約数ペア:

[(1, 21250262), (2, 10625131), (11, 1931842), (22, 965921), (121, 175622), (242, 87811)]