21990825

素因数分解:

$3^3\times 5^2\times {\mathrm{32579}}^1$

素因数の和:32598

約数の個数: 24

約数和(自身を含む): 40399200

約数和(自身を除く): 18408375

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225, 675, 32579, 97737, 162895, 293211, 488685, 814475, 879633, 1466055, 2443425, 4398165, 7330275, 21990825]

約数ペア:

[(1, 21990825), (3, 7330275), (5, 4398165), (9, 2443425), (15, 1466055), (25, 879633), (27, 814475), (45, 488685), (75, 293211), (135, 162895), (225, 97737), (675, 32579)]