20147805

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{8779}}^1$

素因数の和:8810

約数の個数: 32

約数和(自身を含む): 37929600

約数和(自身を除く): 17781795

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 85, 135, 153, 255, 459, 765, 2295, 8779, 26337, 43895, 79011, 131685, 149243, 237033, 395055, 447729, 746215, 1185165, 1343187, 2238645, 4029561, 6715935, 20147805]

約数ペア:

[(1, 20147805), (3, 6715935), (5, 4029561), (9, 2238645), (15, 1343187), (17, 1185165), (27, 746215), (45, 447729), (51, 395055), (85, 237033), (135, 149243), (153, 131685), (255, 79011), (459, 43895), (765, 26337), (2295, 8779)]