20775321

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{7669}}^1$

素因数の和:7725

約数の個数: 24

約数和(自身を含む): 35097920

約数和(自身を除く): 14322599

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 7669, 23007, 53683, 69021, 161049, 329767, 483147, 989301, 2308369, 2967903, 6925107, 20775321]

約数ペア:

[(1, 20775321), (3, 6925107), (7, 2967903), (9, 2308369), (21, 989301), (43, 483147), (63, 329767), (129, 161049), (301, 69021), (387, 53683), (903, 23007), (2709, 7669)]