2801981

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{751}}^1$

素因数の和:812

約数の個数: 16

約数和(自身を含む): 3537408

約数和(自身を除く): 735427

約数列:

[1, 7, 13, 41, 91, 287, 533, 751, 3731, 5257, 9763, 30791, 68341, 215537, 400283, 2801981]

約数ペア:

[(1, 2801981), (7, 400283), (13, 215537), (41, 68341), (91, 30791), (287, 9763), (533, 5257), (751, 3731)]