2809499

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{107}}^1$

素因数の和:167

約数の個数: 24

約数和(自身を含む): 3677184

約数和(自身を除く): 867685

約数列:

[1, 7, 11, 31, 77, 107, 121, 217, 341, 749, 847, 1177, 2387, 3317, 3751, 8239, 12947, 23219, 26257, 36487, 90629, 255409, 401357, 2809499]

約数ペア:

[(1, 2809499), (7, 401357), (11, 255409), (31, 90629), (77, 36487), (107, 26257), (121, 23219), (217, 12947), (341, 8239), (749, 3751), (847, 3317), (1177, 2387)]