13680495

素因数分解:

$3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1987}}^1$

素因数の和:2021

約数の個数: 40

約数和(自身を含む): 25979184

約数和(自身を除く): 12298689

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 81, 85, 135, 153, 255, 405, 459, 765, 1377, 1987, 2295, 5961, 6885, 9935, 17883, 29805, 33779, 53649, 89415, 101337, 160947, 168895, 268245, 304011, 506685, 804735, 912033, 1520055, 2736099, 4560165, 13680495]

約数ペア:

[(1, 13680495), (3, 4560165), (5, 2736099), (9, 1520055), (15, 912033), (17, 804735), (27, 506685), (45, 304011), (51, 268245), (81, 168895), (85, 160947), (135, 101337), (153, 89415), (255, 53649), (405, 33779), (459, 29805), (765, 17883), (1377, 9935), (1987, 6885), (2295, 5961)]