81697887

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{245339}}^1$

素因数の和:245382

約数の個数: 12

約数和(自身を含む): 121197960

約数和(自身を除く): 39500073

約数列:

[1, 3, 9, 37, 111, 333, 245339, 736017, 2208051, 9077543, 27232629, 81697887]

約数ペア:

[(1, 81697887), (3, 27232629), (9, 9077543), (37, 2208051), (111, 736017), (333, 245339)]