20478771

素因数分解:

$3^3\times {\mathrm{151}}^1\times {\mathrm{5023}}^1$

素因数の和:5183

約数の個数: 16

約数和(自身を含む): 30545920

約数和(自身を除く): 10067149

約数列:

[1, 3, 9, 27, 151, 453, 1359, 4077, 5023, 15069, 45207, 135621, 758473, 2275419, 6826257, 20478771]

約数ペア:

[(1, 20478771), (3, 6826257), (9, 2275419), (27, 758473), (151, 135621), (453, 45207), (1359, 15069), (4077, 5023)]