28657869

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{15187}}^1$

素因数の和:15244

約数の個数: 16

約数和(自身を含む): 41554368

約数和(自身を除く): 12896499

約数列:

[1, 3, 17, 37, 51, 111, 629, 1887, 15187, 45561, 258179, 561919, 774537, 1685757, 9552623, 28657869]

約数ペア:

[(1, 28657869), (3, 9552623), (17, 1685757), (37, 774537), (51, 561919), (111, 258179), (629, 45561), (1887, 15187)]