20121895

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{4729}}^1$

素因数の和:4794

約数の個数: 16

約数和(自身を含む): 25882560

約数和(自身を除く): 5760665

約数列:

[1, 5, 23, 37, 115, 185, 851, 4255, 4729, 23645, 108767, 174973, 543835, 874865, 4024379, 20121895]

約数ペア:

[(1, 20121895), (5, 4024379), (23, 874865), (37, 543835), (115, 174973), (185, 108767), (851, 23645), (4255, 4729)]