20137941

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{811}}^1$

素因数の和:937

約数の個数: 24

約数和(自身を含む): 30401280

約数和(自身を除く): 10263339

約数列:

[1, 3, 9, 31, 89, 93, 267, 279, 801, 811, 2433, 2759, 7299, 8277, 24831, 25141, 72179, 75423, 216537, 226269, 649611, 2237549, 6712647, 20137941]

約数ペア:

[(1, 20137941), (3, 6712647), (9, 2237549), (31, 649611), (89, 226269), (93, 216537), (267, 75423), (279, 72179), (801, 25141), (811, 24831), (2433, 8277), (2759, 7299)]