28717087

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{307}}^1$

素因数の和:427

約数の個数: 24

約数和(自身を含む): 35392896

約数和(自身を除く): 6675809

約数列:

[1, 7, 23, 49, 83, 161, 307, 581, 1127, 1909, 2149, 4067, 7061, 13363, 15043, 25481, 49427, 93541, 178367, 345989, 586063, 1248569, 4102441, 28717087]

約数ペア:

[(1, 28717087), (7, 4102441), (23, 1248569), (49, 586063), (83, 345989), (161, 178367), (307, 93541), (581, 49427), (1127, 25481), (1909, 15043), (2149, 13363), (4067, 7061)]