18447903

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{653}}^1$

素因数の和:775

約数の個数: 24

約数和(自身を含む): 27682512

約数和(自身を除く): 9234609

約数列:

[1, 3, 9, 43, 73, 129, 219, 387, 653, 657, 1959, 3139, 5877, 9417, 28079, 28251, 47669, 84237, 143007, 252711, 429021, 2049767, 6149301, 18447903]

約数ペア:

[(1, 18447903), (3, 6149301), (9, 2049767), (43, 429021), (73, 252711), (129, 143007), (219, 84237), (387, 47669), (653, 28251), (657, 28079), (1959, 9417), (3139, 5877)]