21131215204

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{7873031}}^1$

素因数の和:7873107

約数の個数: 24

約数和(自身を含む): 41002750656

約数和(自身を除く): 19871535452

約数列:

[1, 2, 4, 11, 22, 44, 61, 122, 244, 671, 1342, 2684, 7873031, 15746062, 31492124, 86603341, 173206682, 346413364, 480254891, 960509782, 1921019564, 5282803801, 10565607602, 21131215204]

約数ペア:

[(1, 21131215204), (2, 10565607602), (4, 5282803801), (11, 1921019564), (22, 960509782), (44, 480254891), (61, 346413364), (122, 173206682), (244, 86603341), (671, 31492124), (1342, 15746062), (2684, 7873031)]