20704497

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{547}}^1$

素因数の和:629

約数の個数: 32

約数和(自身を含む): 31985664

約数和(自身を除く): 11281167

約数列:

[1, 3, 11, 31, 33, 37, 93, 111, 341, 407, 547, 1023, 1147, 1221, 1641, 3441, 6017, 12617, 16957, 18051, 20239, 37851, 50871, 60717, 186527, 222629, 559581, 627409, 667887, 1882227, 6901499, 20704497]

約数ペア:

[(1, 20704497), (3, 6901499), (11, 1882227), (31, 667887), (33, 627409), (37, 559581), (93, 222629), (111, 186527), (341, 60717), (407, 50871), (547, 37851), (1023, 20239), (1147, 18051), (1221, 16957), (1641, 12617), (3441, 6017)]