18128831

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{4397}}^1$

素因数の和:4454

約数の個数: 16

約数和(自身を含む): 22517760

約数和(自身を除く): 4388929

約数列:

[1, 7, 19, 31, 133, 217, 589, 4123, 4397, 30779, 83543, 136307, 584801, 954149, 2589833, 18128831]

約数ペア:

[(1, 18128831), (7, 2589833), (19, 954149), (31, 584801), (133, 136307), (217, 83543), (589, 30779), (4123, 4397)]