18689235

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{30389}}^1$

素因数の和:30438

約数の個数: 16

約数和(自身を含む): 30633120

約数和(自身を除く): 11943885

約数列:

[1, 3, 5, 15, 41, 123, 205, 615, 30389, 91167, 151945, 455835, 1245949, 3737847, 6229745, 18689235]

約数ペア:

[(1, 18689235), (3, 6229745), (5, 3737847), (15, 1245949), (41, 455835), (123, 151945), (205, 91167), (615, 30389)]