21286485

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43003}}^1$

素因数の和:43025

約数の個数: 24

約数和(自身を含む): 40251744

約数和(自身を除く): 18965259

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495, 43003, 129009, 215015, 387027, 473033, 645045, 1419099, 1935135, 2365165, 4257297, 7095495, 21286485]

約数ペア:

[(1, 21286485), (3, 7095495), (5, 4257297), (9, 2365165), (11, 1935135), (15, 1419099), (33, 645045), (45, 473033), (55, 387027), (99, 215015), (165, 129009), (495, 43003)]