2141721

素因数分解:

$3^4\times {\mathrm{137}}^1\times {\mathrm{193}}^1$

素因数の和:342

約数の個数: 20

約数和(自身を含む): 3239412

約数和(自身を除く): 1097691

約数列:

[1, 3, 9, 27, 81, 137, 193, 411, 579, 1233, 1737, 3699, 5211, 11097, 15633, 26441, 79323, 237969, 713907, 2141721]

約数ペア:

[(1, 2141721), (3, 713907), (9, 237969), (27, 79323), (81, 26441), (137, 15633), (193, 11097), (411, 5211), (579, 3699), (1233, 1737)]