20255967

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{239}}^1$

素因数の和:364

約数の個数: 32

約数和(自身を含む): 31257600

約数和(自身を除く): 11001633

約数列:

[1, 3, 9, 27, 43, 73, 129, 219, 239, 387, 657, 717, 1161, 1971, 2151, 3139, 6453, 9417, 10277, 17447, 28251, 30831, 52341, 84753, 92493, 157023, 277479, 471069, 750221, 2250663, 6751989, 20255967]

約数ペア:

[(1, 20255967), (3, 6751989), (9, 2250663), (27, 750221), (43, 471069), (73, 277479), (129, 157023), (219, 92493), (239, 84753), (387, 52341), (657, 30831), (717, 28251), (1161, 17447), (1971, 10277), (2151, 9417), (3139, 6453)]