15231321

素因数分解:

$3^4\times 7^1\times {\mathrm{26863}}^1$

素因数の和:26882

約数の個数: 20

約数和(自身を含む): 26004352

約数和(自身を除く): 10773031

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 26863, 80589, 188041, 241767, 564123, 725301, 1692369, 2175903, 5077107, 15231321]

約数ペア:

[(1, 15231321), (3, 5077107), (7, 2175903), (9, 1692369), (21, 725301), (27, 564123), (63, 241767), (81, 188041), (189, 80589), (567, 26863)]