18528890

素因数分解:

$2^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{9311}}^1$

素因数の和:9517

約数の個数: 16

約数和(自身を含む): 33523200

約数和(自身を除く): 14994310

約数列:

[1, 2, 5, 10, 199, 398, 995, 1990, 9311, 18622, 46555, 93110, 1852889, 3705778, 9264445, 18528890]

約数ペア:

[(1, 18528890), (2, 9264445), (5, 3705778), (10, 1852889), (199, 93110), (398, 46555), (995, 18622), (1990, 9311)]