20549218

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{431}}^1\times {\mathrm{769}}^1$

素因数の和:1233

約数の個数: 16

約数和(自身を含む): 31933440

約数和(自身を除く): 11384222

約数列:

[1, 2, 31, 62, 431, 769, 862, 1538, 13361, 23839, 26722, 47678, 331439, 662878, 10274609, 20549218]

約数ペア:

[(1, 20549218), (2, 10274609), (31, 662878), (62, 331439), (431, 47678), (769, 26722), (862, 23839), (1538, 13361)]