20218671

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{1559}}^1$

素因数の和:1707

約数の個数: 24

約数和(自身を含む): 32123520

約数和(自身を除く): 11904849

約数列:

[1, 3, 9, 11, 33, 99, 131, 393, 1179, 1441, 1559, 4323, 4677, 12969, 14031, 17149, 51447, 154341, 204229, 612687, 1838061, 2246519, 6739557, 20218671]

約数ペア:

[(1, 20218671), (3, 6739557), (9, 2246519), (11, 1838061), (33, 612687), (99, 204229), (131, 154341), (393, 51447), (1179, 17149), (1441, 14031), (1559, 12969), (4323, 4677)]