20518616

素因数分解:

$2^3\times {\mathrm{67}}^1\times {\mathrm{38281}}^1$

素因数の和:38354

約数の個数: 16

約数和(自身を含む): 39047640

約数和(自身を除く): 18529024

約数列:

[1, 2, 4, 8, 67, 134, 268, 536, 38281, 76562, 153124, 306248, 2564827, 5129654, 10259308, 20518616]

約数ペア:

[(1, 20518616), (2, 10259308), (4, 5129654), (8, 2564827), (67, 306248), (134, 153124), (268, 76562), (536, 38281)]