20681045

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53717}}^1$

素因数の和:53740

約数の個数: 16

約数和(自身を含む): 30941568

約数和(自身を除く): 10260523

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 53717, 268585, 376019, 590887, 1880095, 2954435, 4136209, 20681045]

約数ペア:

[(1, 20681045), (5, 4136209), (7, 2954435), (11, 1880095), (35, 590887), (55, 376019), (77, 268585), (385, 53717)]