20927564

素因数分解:

$2^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{6857}}^1$

素因数の和:6977

約数の個数: 24

約数和(自身を含む): 42245280

約数和(自身を除く): 21317716

約数列:

[1, 2, 4, 7, 14, 28, 109, 218, 436, 763, 1526, 3052, 6857, 13714, 27428, 47999, 95998, 191996, 747413, 1494826, 2989652, 5231891, 10463782, 20927564]

約数ペア:

[(1, 20927564), (2, 10463782), (4, 5231891), (7, 2989652), (14, 1494826), (28, 747413), (109, 191996), (218, 95998), (436, 47999), (763, 27428), (1526, 13714), (3052, 6857)]