20840649

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{277}}^1\times {\mathrm{809}}^1$

素因数の和:1120

約数の個数: 16

約数和(自身を含む): 28823040

約数和(自身を除く): 7982391

約数列:

[1, 3, 31, 93, 277, 809, 831, 2427, 8587, 25079, 25761, 75237, 224093, 672279, 6946883, 20840649]

約数ペア:

[(1, 20840649), (3, 6946883), (31, 672279), (93, 224093), (277, 75237), (809, 25761), (831, 25079), (2427, 8587)]