20420786

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{2351}}^1$

素因数の和:2497

約数の個数: 16

約数和(自身を含む): 31667328

約数和(自身を除く): 11246542

約数列:

[1, 2, 43, 86, 101, 202, 2351, 4343, 4702, 8686, 101093, 202186, 237451, 474902, 10210393, 20420786]

約数ペア:

[(1, 20420786), (2, 10210393), (43, 474902), (86, 237451), (101, 202186), (202, 101093), (2351, 8686), (4343, 4702)]