20408735809

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{463}}^1\times {\mathrm{13313}}^1$

素因数の和:13837

約数の個数: 32

約数和(自身を含む): 26094587904

約数和(自身を除く): 5685852095

約数列:

[1, 7, 11, 43, 77, 301, 463, 473, 3241, 3311, 5093, 13313, 19909, 35651, 93191, 139363, 146443, 218999, 572459, 1025101, 1532993, 4007213, 6163919, 6297049, 43147433, 44079343, 67803109, 265048517, 474621763, 1855339619, 2915533687, 20408735809]

約数ペア:

[(1, 20408735809), (7, 2915533687), (11, 1855339619), (43, 474621763), (77, 265048517), (301, 67803109), (463, 44079343), (473, 43147433), (3241, 6297049), (3311, 6163919), (5093, 4007213), (13313, 1532993), (19909, 1025101), (35651, 572459), (93191, 218999), (139363, 146443)]