31291191

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{5441}}^1$

素因数の和:5524

約数の個数: 20

約数和(自身を含む): 47410704

約数和(自身を除く): 16119513

約数列:

[1, 3, 9, 27, 71, 81, 213, 639, 1917, 5441, 5751, 16323, 48969, 146907, 386311, 440721, 1158933, 3476799, 10430397, 31291191]

約数ペア:

[(1, 31291191), (3, 10430397), (9, 3476799), (27, 1158933), (71, 440721), (81, 386311), (213, 146907), (639, 48969), (1917, 16323), (5441, 5751)]