20312789

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{2129}}^1$

素因数の和:2212

約数の個数: 16

約数和(自身を含む): 24537600

約数和(自身を除く): 4224811

約数列:

[1, 7, 29, 47, 203, 329, 1363, 2129, 9541, 14903, 61741, 100063, 432187, 700441, 2901827, 20312789]

約数ペア:

[(1, 20312789), (7, 2901827), (29, 700441), (47, 432187), (203, 100063), (329, 61741), (1363, 14903), (2129, 9541)]