28440639

素因数分解:

$3^4\times {\mathrm{311}}^1\times {\mathrm{1129}}^1$

素因数の和:1452

約数の個数: 20

約数和(自身を含む): 42659760

約数和(自身を除く): 14219121

約数列:

[1, 3, 9, 27, 81, 311, 933, 1129, 2799, 3387, 8397, 10161, 25191, 30483, 91449, 351119, 1053357, 3160071, 9480213, 28440639]

約数ペア:

[(1, 28440639), (3, 9480213), (9, 3160071), (27, 1053357), (81, 351119), (311, 91449), (933, 30483), (1129, 25191), (2799, 10161), (3387, 8397)]