20371855

素因数分解:

$5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{5651}}^1$

素因数の和:5766

約数の個数: 16

約数和(自身を含む): 28214784

約数和(自身を除く): 7842929

約数列:

[1, 5, 7, 35, 103, 515, 721, 3605, 5651, 28255, 39557, 197785, 582053, 2910265, 4074371, 20371855]

約数ペア:

[(1, 20371855), (5, 4074371), (7, 2910265), (35, 582053), (103, 197785), (515, 39557), (721, 28255), (3605, 5651)]