20796974

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{15497}}^1$

素因数の和:15571

約数の個数: 16

約数和(自身を含む): 34591536

約数和(自身を除く): 13794562

約数列:

[1, 2, 11, 22, 61, 122, 671, 1342, 15497, 30994, 170467, 340934, 945317, 1890634, 10398487, 20796974]

約数ペア:

[(1, 20796974), (2, 10398487), (11, 1890634), (22, 945317), (61, 340934), (122, 170467), (671, 30994), (1342, 15497)]