20539211

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{1699}}^1$

素因数の和:1874

約数の個数: 16

約数和(自身を含む): 25785600

約数和(自身を除く): 5246389

約数列:

[1, 7, 11, 77, 157, 1099, 1699, 1727, 11893, 12089, 18689, 130823, 266743, 1867201, 2934173, 20539211]

約数ペア:

[(1, 20539211), (7, 2934173), (11, 1867201), (77, 266743), (157, 130823), (1099, 18689), (1699, 12089), (1727, 11893)]