31387671

素因数分解:

$3^2\times 7^1\times {\mathrm{113}}^1\times {\mathrm{4409}}^1$

素因数の和:4535

約数の個数: 24

約数和(自身を含む): 52284960

約数和(自身を除く): 20897289

約数列:

[1, 3, 7, 9, 21, 63, 113, 339, 791, 1017, 2373, 4409, 7119, 13227, 30863, 39681, 92589, 277767, 498217, 1494651, 3487519, 4483953, 10462557, 31387671]

約数ペア:

[(1, 31387671), (3, 10462557), (7, 4483953), (9, 3487519), (21, 1494651), (63, 498217), (113, 277767), (339, 92589), (791, 39681), (1017, 30863), (2373, 13227), (4409, 7119)]