28648215

素因数分解:

$3^3\times 5^1\times {\mathrm{212209}}^1$

素因数の和:212223

約数の個数: 16

約数和(自身を含む): 50930400

約数和(自身を除く): 22282185

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 212209, 636627, 1061045, 1909881, 3183135, 5729643, 9549405, 28648215]

約数ペア:

[(1, 28648215), (3, 9549405), (5, 5729643), (9, 3183135), (15, 1909881), (27, 1061045), (45, 636627), (135, 212209)]