20396853

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{8123}}^1$

素因数の和:8166

約数の個数: 20

約数和(自身を含む): 31456128

約数和(自身を除く): 11059275

約数列:

[1, 3, 9, 27, 31, 81, 93, 279, 837, 2511, 8123, 24369, 73107, 219321, 251813, 657963, 755439, 2266317, 6798951, 20396853]

約数ペア:

[(1, 20396853), (3, 6798951), (9, 2266317), (27, 755439), (31, 657963), (81, 251813), (93, 219321), (279, 73107), (837, 24369), (2511, 8123)]