21010895

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{1637}}^1$

素因数の和:1810

約数の個数: 16

約数和(自身を含む): 26889408

約数和(自身を除く): 5878513

約数列:

[1, 5, 17, 85, 151, 755, 1637, 2567, 8185, 12835, 27829, 139145, 247187, 1235935, 4202179, 21010895]

約数ペア:

[(1, 21010895), (5, 4202179), (17, 1235935), (85, 247187), (151, 139145), (755, 27829), (1637, 12835), (2567, 8185)]