20863413

素因数分解:

$3^4\times {\mathrm{307}}^1\times {\mathrm{839}}^1$

素因数の和:1158

約数の個数: 20

約数和(自身を含む): 31305120

約数和(自身を除く): 10441707

約数列:

[1, 3, 9, 27, 81, 307, 839, 921, 2517, 2763, 7551, 8289, 22653, 24867, 67959, 257573, 772719, 2318157, 6954471, 20863413]

約数ペア:

[(1, 20863413), (3, 6954471), (9, 2318157), (27, 772719), (81, 257573), (307, 67959), (839, 24867), (921, 22653), (2517, 8289), (2763, 7551)]