20870927

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{601}}^1$

素因数の和:671

約数の個数: 24

約数和(自身を含む): 26902176

約数和(自身を除く): 6031249

約数列:

[1, 7, 11, 41, 77, 121, 287, 451, 601, 847, 3157, 4207, 4961, 6611, 24641, 34727, 46277, 72721, 172487, 271051, 509047, 1897357, 2981561, 20870927]

約数ペア:

[(1, 20870927), (7, 2981561), (11, 1897357), (41, 509047), (77, 271051), (121, 172487), (287, 72721), (451, 46277), (601, 34727), (847, 24641), (3157, 6611), (4207, 4961)]