20401447

素因数分解:

${\mathrm{11}}^2\times {\mathrm{139}}^1\times {\mathrm{1213}}^1$

素因数の和:1374

約数の個数: 12

約数和(自身を含む): 22604680

約数和(自身を除く): 2203233

約数列:

[1, 11, 121, 139, 1213, 1529, 13343, 16819, 146773, 168607, 1854677, 20401447]

約数ペア:

[(1, 20401447), (11, 1854677), (121, 168607), (139, 146773), (1213, 16819), (1529, 13343)]