51397857

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{18973}}^1$

素因数の和:19029

約数の個数: 24

約数和(自身を含む): 86825024

約数和(自身を除く): 35427167

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 18973, 56919, 132811, 170757, 398433, 815839, 1195299, 2447517, 5710873, 7342551, 17132619, 51397857]

約数ペア:

[(1, 51397857), (3, 17132619), (7, 7342551), (9, 5710873), (21, 2447517), (43, 1195299), (63, 815839), (129, 398433), (301, 170757), (387, 132811), (903, 56919), (2709, 18973)]