28657935

素因数分解:

$3^3\times 5^1\times {\mathrm{212281}}^1$

素因数の和:212295

約数の個数: 16

約数和(自身を含む): 50947680

約数和(自身を除く): 22289745

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 212281, 636843, 1061405, 1910529, 3184215, 5731587, 9552645, 28657935]

約数ペア:

[(1, 28657935), (3, 9552645), (5, 5731587), (9, 3184215), (15, 1910529), (27, 1061405), (45, 636843), (135, 212281)]