17820045

素因数分解:

$3^2\times 5^1\times {\mathrm{396001}}^1$

素因数の和:396012

約数の個数: 12

約数和(自身を含む): 30888156

約数和(自身を除く): 13068111

約数列:

[1, 3, 5, 9, 15, 45, 396001, 1188003, 1980005, 3564009, 5940015, 17820045]

約数ペア:

[(1, 17820045), (3, 5940015), (5, 3564009), (9, 1980005), (15, 1188003), (45, 396001)]