28591087

素因数分解:

$7^1\times {\mathrm{43}}^2\times {\mathrm{47}}^2$

素因数の和:187

約数の個数: 18

約数和(自身を含む): 34180008

約数和(自身を除く): 5588921

約数列:

[1, 7, 43, 47, 301, 329, 1849, 2021, 2209, 12943, 14147, 15463, 86903, 94987, 608321, 664909, 4084441, 28591087]

約数ペア:

[(1, 28591087), (7, 4084441), (43, 664909), (47, 608321), (301, 94987), (329, 86903), (1849, 15463), (2021, 14147), (2209, 12943)]