39901905

素因数分解:

$3^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{8287}}^1$

素因数の和:8405

約数の個数: 24

約数和(自身を含む): 69818112

約数和(自身を除く): 29916207

約数列:

[1, 3, 5, 9, 15, 45, 107, 321, 535, 963, 1605, 4815, 8287, 24861, 41435, 74583, 124305, 372915, 886709, 2660127, 4433545, 7980381, 13300635, 39901905]

約数ペア:

[(1, 39901905), (3, 13300635), (5, 7980381), (9, 4433545), (15, 2660127), (45, 886709), (107, 372915), (321, 124305), (535, 74583), (963, 41435), (1605, 24861), (4815, 8287)]