20838796

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{3457}}^1$

素因数の和:3609

約数の個数: 24

約数和(自身を含む): 40085136

約数和(自身を除く): 19246340

約数列:

[1, 2, 4, 11, 22, 44, 137, 274, 548, 1507, 3014, 3457, 6028, 6914, 13828, 38027, 76054, 152108, 473609, 947218, 1894436, 5209699, 10419398, 20838796]

約数ペア:

[(1, 20838796), (2, 10419398), (4, 5209699), (11, 1894436), (22, 947218), (44, 473609), (137, 152108), (274, 76054), (548, 38027), (1507, 13828), (3014, 6914), (3457, 6028)]