6989311

素因数分解:

$7^4\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:140

約数の個数: 20

約数和(自身を含む): 8470224

約数和(自身を除く): 1480913

約数列:

[1, 7, 41, 49, 71, 287, 343, 497, 2009, 2401, 2911, 3479, 14063, 20377, 24353, 98441, 142639, 170471, 998473, 6989311]

約数ペア:

[(1, 6989311), (7, 998473), (41, 170471), (49, 142639), (71, 98441), (287, 24353), (343, 20377), (497, 14063), (2009, 3479), (2401, 2911)]