21925497

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{17957}}^1$

素因数の和:18008

約数の個数: 16

約数和(自身を含む): 32755392

約数和(自身を除く): 10829895

約数列:

[1, 3, 11, 33, 37, 111, 407, 1221, 17957, 53871, 197527, 592581, 664409, 1993227, 7308499, 21925497]

約数ペア:

[(1, 21925497), (3, 7308499), (11, 1993227), (33, 664409), (37, 592581), (111, 197527), (407, 53871), (1221, 17957)]