20687557261

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{317}}^1\times {\mathrm{548407}}^1$

素因数の和:548748

約数の個数: 16

約数和(自身を含む): 25112699136

約数和(自身を除く): 4425141875

約数列:

[1, 7, 17, 119, 317, 2219, 5389, 37723, 548407, 3838849, 9322919, 65260433, 173845019, 1216915133, 2955365323, 20687557261]

約数ペア:

[(1, 20687557261), (7, 2955365323), (17, 1216915133), (119, 173845019), (317, 65260433), (2219, 9322919), (5389, 3838849), (37723, 548407)]