18416889

素因数分解:

$3^4\times {\mathrm{271}}^1\times {\mathrm{839}}^1$

素因数の和:1122

約数の個数: 20

約数和(自身を含む): 27646080

約数和(自身を除く): 9229191

約数列:

[1, 3, 9, 27, 81, 271, 813, 839, 2439, 2517, 7317, 7551, 21951, 22653, 67959, 227369, 682107, 2046321, 6138963, 18416889]

約数ペア:

[(1, 18416889), (3, 6138963), (9, 2046321), (27, 682107), (81, 227369), (271, 67959), (813, 22653), (839, 21951), (2439, 7551), (2517, 7317)]