12431889

素因数分解:

$3^2\times {\mathrm{37}}^2\times {\mathrm{1009}}^1$

素因数の和:1089

約数の個数: 18

約数和(自身を含む): 18473910

約数和(自身を除く): 6042021

約数列:

[1, 3, 9, 37, 111, 333, 1009, 1369, 3027, 4107, 9081, 12321, 37333, 111999, 335997, 1381321, 4143963, 12431889]

約数ペア:

[(1, 12431889), (3, 4143963), (9, 1381321), (37, 335997), (111, 111999), (333, 37333), (1009, 12321), (1369, 9081), (3027, 4107)]