1621167289

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{373}}^1\times {\mathrm{20029}}^1$

素因数の和:20440

約数の個数: 16

約数和(自身を含む): 1917752320

約数和(自身を除く): 296585031

約数列:

[1, 7, 31, 217, 373, 2611, 11563, 20029, 80941, 140203, 620899, 4346293, 7470817, 52295719, 231595327, 1621167289]

約数ペア:

[(1, 1621167289), (7, 231595327), (31, 52295719), (217, 7470817), (373, 4346293), (2611, 620899), (11563, 140203), (20029, 80941)]