20809217

素因数分解:

${\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{13229}}^1$

素因数の和:13264

約数の個数: 12

約数和(自身を含む): 24634260

約数和(自身を除く): 3825043

約数列:

[1, 11, 13, 121, 143, 1573, 13229, 145519, 171977, 1600709, 1891747, 20809217]

約数ペア:

[(1, 20809217), (11, 1891747), (13, 1600709), (121, 171977), (143, 145519), (1573, 13229)]