21593663

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{311}}^1$

素因数の和:447

約数の個数: 24

約数和(自身を含む): 27387360

約数和(自身を除く): 5793697

約数列:

[1, 7, 13, 49, 91, 109, 311, 637, 763, 1417, 2177, 4043, 5341, 9919, 15239, 28301, 33899, 69433, 198107, 237293, 440687, 1661051, 3084809, 21593663]

約数ペア:

[(1, 21593663), (7, 3084809), (13, 1661051), (49, 440687), (91, 237293), (109, 198107), (311, 69433), (637, 33899), (763, 28301), (1417, 15239), (2177, 9919), (4043, 5341)]