19809573

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{7927}}^1$

素因数の和:7961

約数の個数: 24

約数和(自身を含む): 32536512

約数和(自身を除く): 12726939

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 357, 833, 2499, 7927, 23781, 55489, 134759, 166467, 388423, 404277, 943313, 1165269, 2829939, 6603191, 19809573]

約数ペア:

[(1, 19809573), (3, 6603191), (7, 2829939), (17, 1165269), (21, 943313), (49, 404277), (51, 388423), (119, 166467), (147, 134759), (357, 55489), (833, 23781), (2499, 7927)]