20525115

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1571}}^1$

素因数の和:1659

約数の個数: 32

約数和(自身を含む): 35917056

約数和(自身を除く): 15391941

約数列:

[1, 3, 5, 13, 15, 39, 65, 67, 195, 201, 335, 871, 1005, 1571, 2613, 4355, 4713, 7855, 13065, 20423, 23565, 61269, 102115, 105257, 306345, 315771, 526285, 1368341, 1578855, 4105023, 6841705, 20525115]

約数ペア:

[(1, 20525115), (3, 6841705), (5, 4105023), (13, 1578855), (15, 1368341), (39, 526285), (65, 315771), (67, 306345), (195, 105257), (201, 102115), (335, 61269), (871, 23565), (1005, 20423), (1571, 13065), (2613, 7855), (4355, 4713)]