19999804

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{454541}}^1$

素因数の和:454556

約数の個数: 12

約数和(自身を含む): 38181528

約数和(自身を除く): 18181724

約数列:

[1, 2, 4, 11, 22, 44, 454541, 909082, 1818164, 4999951, 9999902, 19999804]

約数ペア:

[(1, 19999804), (2, 9999902), (4, 4999951), (11, 1818164), (22, 909082), (44, 454541)]