21059852

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{11131}}^1$

素因数の和:11189

約数の個数: 24

約数和(自身を含む): 41143872

約数和(自身を除く): 20084020

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 172, 473, 946, 1892, 11131, 22262, 44524, 122441, 244882, 478633, 489764, 957266, 1914532, 5264963, 10529926, 21059852]

約数ペア:

[(1, 21059852), (2, 10529926), (4, 5264963), (11, 1914532), (22, 957266), (43, 489764), (44, 478633), (86, 244882), (172, 122441), (473, 44524), (946, 22262), (1892, 11131)]