128839167

素因数分解:

$3^4\times {\mathrm{199}}^1\times {\mathrm{7993}}^1$

素因数の和:8204

約数の個数: 20

約数和(自身を含む): 193454800

約数和(自身を除く): 64615633

約数列:

[1, 3, 9, 27, 81, 199, 597, 1791, 5373, 7993, 16119, 23979, 71937, 215811, 647433, 1590607, 4771821, 14315463, 42946389, 128839167]

約数ペア:

[(1, 128839167), (3, 42946389), (9, 14315463), (27, 4771821), (81, 1590607), (199, 647433), (597, 215811), (1791, 71937), (5373, 23979), (7993, 16119)]