20594405

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{3137}}^1$

素因数の和:3256

約数の個数: 16

約数和(自身を含む): 26886384

約数和(自身を除く): 6291979

約数列:

[1, 5, 13, 65, 101, 505, 1313, 3137, 6565, 15685, 40781, 203905, 316837, 1584185, 4118881, 20594405]

約数ペア:

[(1, 20594405), (5, 4118881), (13, 1584185), (65, 316837), (101, 203905), (505, 40781), (1313, 15685), (3137, 6565)]