20979398

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{12071}}^1$

素因数の和:12163

約数の個数: 16

約数和(自身を含む): 34767360

約数和(自身を除く): 13787962

約数列:

[1, 2, 11, 22, 79, 158, 869, 1738, 12071, 24142, 132781, 265562, 953609, 1907218, 10489699, 20979398]

約数ペア:

[(1, 20979398), (2, 10489699), (11, 1907218), (22, 953609), (79, 265562), (158, 132781), (869, 24142), (1738, 12071)]