31131709

素因数分解:

$7^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{281}}^1$

素因数の和:338

約数の個数: 32

約数和(自身を含む): 40608000

約数和(自身を除く): 9476291

約数列:

[1, 7, 17, 19, 49, 119, 133, 281, 323, 343, 833, 931, 1967, 2261, 4777, 5339, 5831, 6517, 13769, 15827, 33439, 37373, 90763, 96383, 110789, 234073, 261611, 635341, 1638511, 1831277, 4447387, 31131709]

約数ペア:

[(1, 31131709), (7, 4447387), (17, 1831277), (19, 1638511), (49, 635341), (119, 261611), (133, 234073), (281, 110789), (323, 96383), (343, 90763), (833, 37373), (931, 33439), (1967, 15827), (2261, 13769), (4777, 6517), (5339, 5831)]