28210231

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{193}}^1$

素因数の和:383

約数の個数: 24

約数和(自身を含む): 34943280

約数和(自身を除く): 6733049

約数列:

[1, 7, 19, 49, 133, 157, 193, 931, 1099, 1351, 2983, 3667, 7693, 9457, 20881, 25669, 30301, 146167, 179683, 212107, 575719, 1484749, 4030033, 28210231]

約数ペア:

[(1, 28210231), (7, 4030033), (19, 1484749), (49, 575719), (133, 212107), (157, 179683), (193, 146167), (931, 30301), (1099, 25669), (1351, 20881), (2983, 9457), (3667, 7693)]