12643857

素因数分解:

$3^4\times {\mathrm{139}}^1\times {\mathrm{1123}}^1$

素因数の和:1274

約数の個数: 20

約数和(自身を含む): 19040560

約数和(自身を除く): 6396703

約数列:

[1, 3, 9, 27, 81, 139, 417, 1123, 1251, 3369, 3753, 10107, 11259, 30321, 90963, 156097, 468291, 1404873, 4214619, 12643857]

約数ペア:

[(1, 12643857), (3, 4214619), (9, 1404873), (27, 468291), (81, 156097), (139, 90963), (417, 30321), (1123, 11259), (1251, 10107), (3369, 3753)]