18398290

素因数分解:

$2^1\times 5^1\times {\mathrm{419}}^1\times {\mathrm{4391}}^1$

素因数の和:4817

約数の個数: 16

約数和(自身を含む): 33203520

約数和(自身を除く): 14805230

約数列:

[1, 2, 5, 10, 419, 838, 2095, 4190, 4391, 8782, 21955, 43910, 1839829, 3679658, 9199145, 18398290]

約数ペア:

[(1, 18398290), (2, 9199145), (5, 3679658), (10, 1839829), (419, 43910), (838, 21955), (2095, 8782), (4190, 4391)]