18089967

素因数分解:

$3^1\times 7^2\times {\mathrm{109}}^1\times {\mathrm{1129}}^1$

素因数の和:1255

約数の個数: 24

約数和(自身を含む): 28340400

約数和(自身を除く): 10250433

約数列:

[1, 3, 7, 21, 49, 109, 147, 327, 763, 1129, 2289, 3387, 5341, 7903, 16023, 23709, 55321, 123061, 165963, 369183, 861427, 2584281, 6029989, 18089967]

約数ペア:

[(1, 18089967), (3, 6029989), (7, 2584281), (21, 861427), (49, 369183), (109, 165963), (147, 123061), (327, 55321), (763, 23709), (1129, 16023), (2289, 7903), (3387, 5341)]