2121749

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:129

約数の個数: 24

約数和(自身を含む): 2708640

約数和(自身を除く): 586891

約数列:

[1, 7, 19, 43, 49, 53, 133, 301, 371, 817, 931, 1007, 2107, 2279, 2597, 5719, 7049, 15953, 40033, 43301, 49343, 111671, 303107, 2121749]

約数ペア:

[(1, 2121749), (7, 303107), (19, 111671), (43, 49343), (49, 43301), (53, 40033), (133, 15953), (301, 7049), (371, 5719), (817, 2597), (931, 2279), (1007, 2107)]