991118265

素因数分解:

$3^1\times 5^1\times {\mathrm{331}}^1\times {\mathrm{199621}}^1$

素因数の和:199960

約数の個数: 16

約数和(自身を含む): 1590588096

約数和(自身を除く): 599469831

約数列:

[1, 3, 5, 15, 331, 993, 1655, 4965, 199621, 598863, 998105, 2994315, 66074551, 198223653, 330372755, 991118265]

約数ペア:

[(1, 991118265), (3, 330372755), (5, 198223653), (15, 66074551), (331, 2994315), (993, 998105), (1655, 598863), (4965, 199621)]