20386359

素因数分解:

$3^2\times 7^1\times {\mathrm{151}}^1\times {\mathrm{2143}}^1$

素因数の和:2307

約数の個数: 24

約数和(自身を含む): 33892352

約数和(自身を除く): 13505993

約数列:

[1, 3, 7, 9, 21, 63, 151, 453, 1057, 1359, 2143, 3171, 6429, 9513, 15001, 19287, 45003, 135009, 323593, 970779, 2265151, 2912337, 6795453, 20386359]

約数ペア:

[(1, 20386359), (3, 6795453), (7, 2912337), (9, 2265151), (21, 970779), (63, 323593), (151, 135009), (453, 45003), (1057, 19287), (1359, 15001), (2143, 9513), (3171, 6429)]