51918489

素因数分解:

$3^4\times 7^2\times {\mathrm{103}}^1\times {\mathrm{127}}^1$

素因数の和:256

約数の個数: 60

約数和(自身を含む): 91812864

約数和(自身を除く): 39894375

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 103, 127, 147, 189, 309, 381, 441, 567, 721, 889, 927, 1143, 1323, 2163, 2667, 2781, 3429, 3969, 5047, 6223, 6489, 8001, 8343, 10287, 13081, 15141, 18669, 19467, 24003, 39243, 45423, 56007, 58401, 72009, 91567, 117729, 136269, 168021, 274701, 353187, 408807, 504063, 640969, 824103, 1059561, 1922907, 2472309, 5768721, 7416927, 17306163, 51918489]

約数ペア:

[(1, 51918489), (3, 17306163), (7, 7416927), (9, 5768721), (21, 2472309), (27, 1922907), (49, 1059561), (63, 824103), (81, 640969), (103, 504063), (127, 408807), (147, 353187), (189, 274701), (309, 168021), (381, 136269), (441, 117729), (567, 91567), (721, 72009), (889, 58401), (927, 56007), (1143, 45423), (1323, 39243), (2163, 24003), (2667, 19467), (2781, 18669), (3429, 15141), (3969, 13081), (5047, 10287), (6223, 8343), (6489, 8001)]