28647945

素因数分解:

$3^3\times 5^1\times {\mathrm{212207}}^1$

素因数の和:212221

約数の個数: 16

約数和(自身を含む): 50929920

約数和(自身を除く): 22281975

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 212207, 636621, 1061035, 1909863, 3183105, 5729589, 9549315, 28647945]

約数ペア:

[(1, 28647945), (3, 9549315), (5, 5729589), (9, 3183105), (15, 1909863), (27, 1061035), (45, 636621), (135, 212207)]