20395276

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{42139}}^1$

素因数の和:42165

約数の個数: 18

約数和(自身を含む): 39232340

約数和(自身を除く): 18837064

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 42139, 84278, 168556, 463529, 927058, 1854116, 5098819, 10197638, 20395276]

約数ペア:

[(1, 20395276), (2, 10197638), (4, 5098819), (11, 1854116), (22, 927058), (44, 463529), (121, 168556), (242, 84278), (484, 42139)]