20713231

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{463}}^1$

素因数の和:571

約数の個数: 24

約数和(自身を含む): 26659584

約数和(自身を除く): 5946353

約数列:

[1, 7, 11, 49, 77, 83, 463, 539, 581, 913, 3241, 4067, 5093, 6391, 22687, 35651, 38429, 44737, 249557, 269003, 422719, 1883021, 2959033, 20713231]

約数ペア:

[(1, 20713231), (7, 2959033), (11, 1883021), (49, 422719), (77, 269003), (83, 249557), (463, 44737), (539, 38429), (581, 35651), (913, 22687), (3241, 6391), (4067, 5093)]