28657911

素因数分解:

$3^1\times {\mathrm{89}}^1\times {\mathrm{181}}^1\times {\mathrm{593}}^1$

素因数の和:866

約数の個数: 16

約数和(自身を含む): 38918880

約数和(自身を除く): 10260969

約数列:

[1, 3, 89, 181, 267, 543, 593, 1779, 16109, 48327, 52777, 107333, 158331, 321999, 9552637, 28657911]

約数ペア:

[(1, 28657911), (3, 9552637), (89, 321999), (181, 158331), (267, 107333), (543, 52777), (593, 48327), (1779, 16109)]