20581385

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{9127}}^1$

素因数の和:9184

約数の個数: 16

約数和(自身を含む): 27603072

約数和(自身を除く): 7021687

約数列:

[1, 5, 11, 41, 55, 205, 451, 2255, 9127, 45635, 100397, 374207, 501985, 1871035, 4116277, 20581385]

約数ペア:

[(1, 20581385), (5, 4116277), (11, 1871035), (41, 501985), (55, 374207), (205, 100397), (451, 45635), (2255, 9127)]