81288781

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{337}}^1\times {\mathrm{2027}}^1$

素因数の和:2388

約数の個数: 16

約数和(自身を含む): 98706816

約数和(自身を除く): 17418035

約数列:

[1, 7, 17, 119, 337, 2027, 2359, 5729, 14189, 34459, 40103, 241213, 683099, 4781693, 11612683, 81288781]

約数ペア:

[(1, 81288781), (7, 11612683), (17, 4781693), (119, 683099), (337, 241213), (2027, 40103), (2359, 34459), (5729, 14189)]