21232239

素因数分解:

$3^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{3359}}^1$

素因数の和:3419

約数の個数: 24

約数和(自身を含む): 33707520

約数和(自身を除く): 12475281

約数列:

[1, 3, 7, 21, 43, 49, 129, 147, 301, 903, 2107, 3359, 6321, 10077, 23513, 70539, 144437, 164591, 433311, 493773, 1011059, 3033177, 7077413, 21232239]

約数ペア:

[(1, 21232239), (3, 7077413), (7, 3033177), (21, 1011059), (43, 493773), (49, 433311), (129, 164591), (147, 144437), (301, 70539), (903, 23513), (2107, 10077), (3359, 6321)]