31401531

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{12157}}^1$

素因数の和:12211

約数の個数: 24

約数和(自身を含む): 53106144

約数和(自身を除く): 21704613

約数列:

[1, 3, 7, 9, 21, 41, 63, 123, 287, 369, 861, 2583, 12157, 36471, 85099, 109413, 255297, 498437, 765891, 1495311, 3489059, 4485933, 10467177, 31401531]

約数ペア:

[(1, 31401531), (3, 10467177), (7, 4485933), (9, 3489059), (21, 1495311), (41, 765891), (63, 498437), (123, 255297), (287, 109413), (369, 85099), (861, 36471), (2583, 12157)]