81118289

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{2381}}^1$

素因数の和:2576

約数の個数: 16

約数和(自身を含む): 96347136

約数和(自身を除く): 15228847

約数列:

[1, 7, 31, 157, 217, 1099, 2381, 4867, 16667, 34069, 73811, 373817, 516677, 2616719, 11588327, 81118289]

約数ペア:

[(1, 81118289), (7, 11588327), (31, 2616719), (157, 516677), (217, 373817), (1099, 73811), (2381, 34069), (4867, 16667)]