217061505

素因数分解:

$3^3\times 5^1\times {\mathrm{1607863}}^1$

素因数の和:1607877

約数の個数: 16

約数和(自身を含む): 385887360

約数和(自身を除く): 168825855

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 1607863, 4823589, 8039315, 14470767, 24117945, 43412301, 72353835, 217061505]

約数ペア:

[(1, 217061505), (3, 72353835), (5, 43412301), (9, 24117945), (15, 14470767), (27, 8039315), (45, 4823589), (135, 1607863)]