20858072

素因数分解:

$2^3\times {\mathrm{1109}}^1\times {\mathrm{2351}}^1$

素因数の和:3466

約数の個数: 16

約数和(自身を含む): 39160800

約数和(自身を除く): 18302728

約数列:

[1, 2, 4, 8, 1109, 2218, 2351, 4436, 4702, 8872, 9404, 18808, 2607259, 5214518, 10429036, 20858072]

約数ペア:

[(1, 20858072), (2, 10429036), (4, 5214518), (8, 2607259), (1109, 18808), (2218, 9404), (2351, 8872), (4436, 4702)]