20177564

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{499}}^1\times {\mathrm{919}}^1$

素因数の和:1433

約数の個数: 24

約数和(自身を含む): 38640000

約数和(自身を除く): 18462436

約数列:

[1, 2, 4, 11, 22, 44, 499, 919, 998, 1838, 1996, 3676, 5489, 10109, 10978, 20218, 21956, 40436, 458581, 917162, 1834324, 5044391, 10088782, 20177564]

約数ペア:

[(1, 20177564), (2, 10088782), (4, 5044391), (11, 1834324), (22, 917162), (44, 458581), (499, 40436), (919, 21956), (998, 20218), (1838, 10978), (1996, 10109), (3676, 5489)]