20147720635

素因数分解:

$5^1\times 7^1\times {\mathrm{2131}}^1\times {\mathrm{270131}}^1$

素因数の和:272274

約数の個数: 16

約数和(自身を含む): 27644228352

約数和(自身を除く): 7496507717

約数列:

[1, 5, 7, 35, 2131, 10655, 14917, 74585, 270131, 1350655, 1890917, 9454585, 575649161, 2878245805, 4029544127, 20147720635]

約数ペア:

[(1, 20147720635), (5, 4029544127), (7, 2878245805), (35, 575649161), (2131, 9454585), (10655, 1890917), (14917, 1350655), (74585, 270131)]