19943605

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{349}}^1\times {\mathrm{1039}}^1$

素因数の和:1404

約数の個数: 16

約数和(自身を含む): 26208000

約数和(自身を除く): 6264395

約数列:

[1, 5, 11, 55, 349, 1039, 1745, 3839, 5195, 11429, 19195, 57145, 362611, 1813055, 3988721, 19943605]

約数ペア:

[(1, 19943605), (5, 3988721), (11, 1813055), (55, 362611), (349, 57145), (1039, 19195), (1745, 11429), (3839, 5195)]