16491489

素因数分解:

$3^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{2609}}^1$

素因数の和:2669

約数の個数: 24

約数和(自身を含む): 26183520

約数和(自身を除く): 9692031

約数列:

[1, 3, 7, 21, 43, 49, 129, 147, 301, 903, 2107, 2609, 6321, 7827, 18263, 54789, 112187, 127841, 336561, 383523, 785309, 2355927, 5497163, 16491489]

約数ペア:

[(1, 16491489), (3, 5497163), (7, 2355927), (21, 785309), (43, 383523), (49, 336561), (129, 127841), (147, 112187), (301, 54789), (903, 18263), (2107, 7827), (2609, 6321)]