12781491

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{2609}}^1$

素因数の和:2706

約数の個数: 16

約数和(自身を含む): 18040320

約数和(自身を除く): 5258829

約数列:

[1, 3, 23, 69, 71, 213, 1633, 2609, 4899, 7827, 60007, 180021, 185239, 555717, 4260497, 12781491]

約数ペア:

[(1, 12781491), (3, 4260497), (23, 555717), (69, 185239), (71, 180021), (213, 60007), (1633, 7827), (2609, 4899)]