21402825

素因数分解:

$3^1\times 5^2\times {\mathrm{137}}^1\times {\mathrm{2083}}^1$

素因数の和:2233

約数の個数: 24

約数和(自身を含む): 35661408

約数和(自身を除く): 14258583

約数列:

[1, 3, 5, 15, 25, 75, 137, 411, 685, 2055, 2083, 3425, 6249, 10275, 10415, 31245, 52075, 156225, 285371, 856113, 1426855, 4280565, 7134275, 21402825]

約数ペア:

[(1, 21402825), (3, 7134275), (5, 4280565), (15, 1426855), (25, 856113), (75, 285371), (137, 156225), (411, 52075), (685, 31245), (2055, 10415), (2083, 10275), (3425, 6249)]