18797589

素因数分解:

$3^4\times {\mathrm{239}}^1\times {\mathrm{971}}^1$

素因数の和:1222

約数の個数: 20

約数和(自身を含む): 28226880

約数和(自身を除く): 9429291

約数列:

[1, 3, 9, 27, 81, 239, 717, 971, 2151, 2913, 6453, 8739, 19359, 26217, 78651, 232069, 696207, 2088621, 6265863, 18797589]

約数ペア:

[(1, 18797589), (3, 6265863), (9, 2088621), (27, 696207), (81, 232069), (239, 78651), (717, 26217), (971, 19359), (2151, 8739), (2913, 6453)]