639514938

素因数分解:

$2^1\times 3^1\times {\mathrm{3889}}^1\times {\mathrm{27407}}^1$

素因数の和:31301

約数の個数: 16

約数和(自身を含む): 1279405440

約数和(自身を除く): 639890502

約数列:

[1, 2, 3, 6, 3889, 7778, 11667, 23334, 27407, 54814, 82221, 164442, 106585823, 213171646, 319757469, 639514938]

約数ペア:

[(1, 639514938), (2, 319757469), (3, 213171646), (6, 106585823), (3889, 164442), (7778, 82221), (11667, 54814), (23334, 27407)]