21189716

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{1657}}^1$

素因数の和:1823

約数の個数: 24

約数和(自身を含む): 38996160

約数和(自身を除く): 17806444

約数列:

[1, 2, 4, 23, 46, 92, 139, 278, 556, 1657, 3197, 3314, 6394, 6628, 12788, 38111, 76222, 152444, 230323, 460646, 921292, 5297429, 10594858, 21189716]

約数ペア:

[(1, 21189716), (2, 10594858), (4, 5297429), (23, 921292), (46, 460646), (92, 230323), (139, 152444), (278, 76222), (556, 38111), (1657, 12788), (3197, 6628), (3314, 6394)]