20218781

素因数分解:

${\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{353}}^1$

素因数の和:532

約数の個数: 16

約数和(自身を含む): 22837248

約数和(自身を除く): 2618467

約数列:

[1, 11, 41, 127, 353, 451, 1397, 3883, 5207, 14473, 44831, 57277, 159203, 493141, 1838071, 20218781]

約数ペア:

[(1, 20218781), (11, 1838071), (41, 493141), (127, 159203), (353, 57277), (451, 44831), (1397, 14473), (3883, 5207)]