20561956836

素因数分解:

$2^2\times 3^1\times {\mathrm{10729}}^1\times {\mathrm{159707}}^1$

素因数の和:170443

約数の個数: 24

約数和(自身を含む): 47982671520

約数和(自身を除く): 27420714684

約数列:

[1, 2, 3, 4, 6, 12, 10729, 21458, 32187, 42916, 64374, 128748, 159707, 319414, 479121, 638828, 958242, 1916484, 1713496403, 3426992806, 5140489209, 6853985612, 10280978418, 20561956836]

約数ペア:

[(1, 20561956836), (2, 10280978418), (3, 6853985612), (4, 5140489209), (6, 3426992806), (12, 1713496403), (10729, 1916484), (21458, 958242), (32187, 638828), (42916, 479121), (64374, 319414), (128748, 159707)]