31900239

素因数分解:

$3^2\times 7^1\times {\mathrm{113}}^1\times {\mathrm{4481}}^1$

素因数の和:4607

約数の個数: 24

約数和(自身を含む): 53138592

約数和(自身を除く): 21238353

約数列:

[1, 3, 7, 9, 21, 63, 113, 339, 791, 1017, 2373, 4481, 7119, 13443, 31367, 40329, 94101, 282303, 506353, 1519059, 3544471, 4557177, 10633413, 31900239]

約数ペア:

[(1, 31900239), (3, 10633413), (7, 4557177), (9, 3544471), (21, 1519059), (63, 506353), (113, 282303), (339, 94101), (791, 40329), (1017, 31367), (2373, 13443), (4481, 7119)]