20817203

素因数分解:

${\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{4001}}^1$

素因数の和:4066

約数の個数: 12

約数和(自身を含む): 23419704

約数和(自身を除く): 2602501

約数列:

[1, 11, 43, 121, 473, 4001, 5203, 44011, 172043, 484121, 1892473, 20817203]

約数ペア:

[(1, 20817203), (11, 1892473), (43, 484121), (121, 172043), (473, 44011), (4001, 5203)]