20806885

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{9227}}^1$

素因数の和:9284

約数の個数: 16

約数和(自身を含む): 27905472

約数和(自身を除く): 7098587

約数列:

[1, 5, 11, 41, 55, 205, 451, 2255, 9227, 46135, 101497, 378307, 507485, 1891535, 4161377, 20806885]

約数ペア:

[(1, 20806885), (5, 4161377), (11, 1891535), (41, 507485), (55, 378307), (205, 101497), (451, 46135), (2255, 9227)]