28086751

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{487}}^1$

素因数の和:619

約数の個数: 24

約数和(自身を含む): 36049536

約数和(自身を除く): 7962785

約数列:

[1, 7, 11, 49, 77, 107, 487, 539, 749, 1177, 3409, 5243, 5357, 8239, 23863, 37499, 52109, 57673, 262493, 364763, 573199, 2553341, 4012393, 28086751]

約数ペア:

[(1, 28086751), (7, 4012393), (11, 2553341), (49, 573199), (77, 364763), (107, 262493), (487, 57673), (539, 52109), (749, 37499), (1177, 23863), (3409, 8239), (5243, 5357)]