19128985

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{919}}^1$

素因数の和:1128

約数の個数: 16

約数和(自身を含む): 24111360

約数和(自身を除く): 4982375

約数列:

[1, 5, 23, 115, 181, 905, 919, 4163, 4595, 20815, 21137, 105685, 166339, 831695, 3825797, 19128985]

約数ペア:

[(1, 19128985), (5, 3825797), (23, 831695), (115, 166339), (181, 105685), (905, 21137), (919, 20815), (4163, 4595)]