12818939

素因数分解:

$7^4\times {\mathrm{19}}^1\times {\mathrm{281}}^1$

素因数の和:328

約数の個数: 20

約数和(自身を含む): 15797640

約数和(自身を除く): 2978701

約数列:

[1, 7, 19, 49, 133, 281, 343, 931, 1967, 2401, 5339, 6517, 13769, 37373, 45619, 96383, 261611, 674681, 1831277, 12818939]

約数ペア:

[(1, 12818939), (7, 1831277), (19, 674681), (49, 261611), (133, 96383), (281, 45619), (343, 37373), (931, 13769), (1967, 6517), (2401, 5339)]