20426245

素因数分解:

$5^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{1901}}^1$

素因数の和:2220

約数の個数: 16

約数和(自身を含む): 28119168

約数和(自身を除く): 7692923

約数列:

[1, 5, 7, 35, 307, 1535, 1901, 2149, 9505, 10745, 13307, 66535, 583607, 2918035, 4085249, 20426245]

約数ペア:

[(1, 20426245), (5, 4085249), (7, 2918035), (35, 583607), (307, 66535), (1535, 13307), (1901, 10745), (2149, 9505)]