18639683

素因数分解:

${\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{401}}^1$

素因数の和:514

約数の個数: 16

約数和(自身を含む): 20376576

約数和(自身を除く): 1736893

約数列:

[1, 23, 43, 47, 401, 989, 1081, 2021, 9223, 17243, 18847, 46483, 396589, 433481, 810421, 18639683]

約数ペア:

[(1, 18639683), (23, 810421), (43, 433481), (47, 396589), (401, 46483), (989, 18847), (1081, 17243), (2021, 9223)]