13215771

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{13229}}^1$

素因数の和:13275

約数の個数: 16

約数和(自身を含む): 20109600

約数和(自身を除く): 6893829

約数列:

[1, 3, 9, 27, 37, 111, 333, 999, 13229, 39687, 119061, 357183, 489473, 1468419, 4405257, 13215771]

約数ペア:

[(1, 13215771), (3, 4405257), (9, 1468419), (27, 489473), (37, 357183), (111, 119061), (333, 39687), (999, 13229)]