31380867

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{12149}}^1$

素因数の和:12203

約数の個数: 24

約数和(自身を含む): 53071200

約数和(自身を除く): 21690333

約数列:

[1, 3, 7, 9, 21, 41, 63, 123, 287, 369, 861, 2583, 12149, 36447, 85043, 109341, 255129, 498109, 765387, 1494327, 3486763, 4482981, 10460289, 31380867]

約数ペア:

[(1, 31380867), (3, 10460289), (7, 4482981), (9, 3486763), (21, 1494327), (41, 765387), (63, 498109), (123, 255129), (287, 109341), (369, 85043), (861, 36447), (2583, 12149)]