18512721

素因数分解:

$3^2\times {\mathrm{641}}^1\times {\mathrm{3209}}^1$

素因数の和:3856

約数の個数: 12

約数和(自身を含む): 26790660

約数和(自身を除く): 8277939

約数列:

[1, 3, 9, 641, 1923, 3209, 5769, 9627, 28881, 2056969, 6170907, 18512721]

約数ペア:

[(1, 18512721), (3, 6170907), (9, 2056969), (641, 28881), (1923, 9627), (3209, 5769)]