18181359

素因数分解:

$3^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{2203}}^1$

素因数の和:2347

約数の個数: 24

約数和(自身を含む): 30256512

約数和(自身を除く): 12075153

約数列:

[1, 3, 7, 9, 21, 63, 131, 393, 917, 1179, 2203, 2751, 6609, 8253, 15421, 19827, 46263, 138789, 288593, 865779, 2020151, 2597337, 6060453, 18181359]

約数ペア:

[(1, 18181359), (3, 6060453), (7, 2597337), (9, 2020151), (21, 865779), (63, 288593), (131, 138789), (393, 46263), (917, 19827), (1179, 15421), (2203, 8253), (2751, 6609)]