21525825

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{16883}}^1$

素因数の和:16913

約数の個数: 24

約数和(自身を含む): 37685088

約数和(自身を除く): 16159263

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 16883, 50649, 84415, 253245, 287011, 422075, 861033, 1266225, 1435055, 4305165, 7175275, 21525825]

約数ペア:

[(1, 21525825), (3, 7175275), (5, 4305165), (15, 1435055), (17, 1266225), (25, 861033), (51, 422075), (75, 287011), (85, 253245), (255, 84415), (425, 50649), (1275, 16883)]