18955981

素因数分解:

${\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{3821}}^1$

素因数の和:3884

約数の個数: 12

約数和(自身を含む): 21349692

約数和(自身を除く): 2393711

約数列:

[1, 11, 41, 121, 451, 3821, 4961, 42031, 156661, 462341, 1723271, 18955981]

約数ペア:

[(1, 18955981), (11, 1723271), (41, 462341), (121, 156661), (451, 42031), (3821, 4961)]