20187657

素因数分解:

$3^3\times 7^2\times {\mathrm{15259}}^1$

素因数の和:15282

約数の個数: 24

約数和(自身を含む): 34792800

約数和(自身を除く): 14605143

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 15259, 45777, 106813, 137331, 320439, 411993, 747691, 961317, 2243073, 2883951, 6729219, 20187657]

約数ペア:

[(1, 20187657), (3, 6729219), (7, 2883951), (9, 2243073), (21, 961317), (27, 747691), (49, 411993), (63, 320439), (147, 137331), (189, 106813), (441, 45777), (1323, 15259)]