20518043

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{11867}}^1$

素因数の和:11906

約数の個数: 16

約数和(自身を含む): 26584320

約数和(自身を除く): 6066277

約数列:

[1, 7, 13, 19, 91, 133, 247, 1729, 11867, 83069, 154271, 225473, 1079897, 1578311, 2931149, 20518043]

約数ペア:

[(1, 20518043), (7, 2931149), (13, 1578311), (19, 1079897), (91, 225473), (133, 154271), (247, 83069), (1729, 11867)]