21830805

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{28537}}^1$

素因数の和:28565

約数の個数: 24

約数和(自身を含む): 40067352

約数和(自身を除く): 18236547

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 28537, 85611, 142685, 256833, 428055, 485129, 1284165, 1455387, 2425645, 4366161, 7276935, 21830805]

約数ペア:

[(1, 21830805), (3, 7276935), (5, 4366161), (9, 2425645), (15, 1455387), (17, 1284165), (45, 485129), (51, 428055), (85, 256833), (153, 142685), (255, 85611), (765, 28537)]