15988905

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{8263}}^1$

素因数の和:8317

約数の個数: 24

約数和(自身を含む): 28362048

約数和(自身を除く): 12373143

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1935, 8263, 24789, 41315, 74367, 123945, 355309, 371835, 1065927, 1776545, 3197781, 5329635, 15988905]

約数ペア:

[(1, 15988905), (3, 5329635), (5, 3197781), (9, 1776545), (15, 1065927), (43, 371835), (45, 355309), (129, 123945), (215, 74367), (387, 41315), (645, 24789), (1935, 8263)]