20144047

素因数分解:

$7^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{281}}^1$

素因数の和:332

約数の個数: 32

約数和(自身を含む): 27072000

約数和(自身を除く): 6927953

約数列:

[1, 7, 11, 19, 49, 77, 133, 209, 281, 343, 539, 931, 1463, 1967, 3091, 3773, 5339, 6517, 10241, 13769, 21637, 37373, 58729, 71687, 96383, 151459, 261611, 411103, 1060213, 1831277, 2877721, 20144047]

約数ペア:

[(1, 20144047), (7, 2877721), (11, 1831277), (19, 1060213), (49, 411103), (77, 261611), (133, 151459), (209, 96383), (281, 71687), (343, 58729), (539, 37373), (931, 21637), (1463, 13769), (1967, 10241), (3091, 6517), (3773, 5339)]