7128891

素因数分解:

$3^6\times 7^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1$

素因数の和:163

約数の個数: 56

約数和(自身を含む): 13430784

約数和(自身を除く): 6301893

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 81, 99, 127, 189, 231, 243, 297, 381, 567, 693, 729, 889, 891, 1143, 1397, 1701, 2079, 2667, 2673, 3429, 4191, 5103, 6237, 8001, 8019, 9779, 10287, 12573, 18711, 24003, 29337, 30861, 37719, 56133, 72009, 88011, 92583, 113157, 216027, 264033, 339471, 648081, 792099, 1018413, 2376297, 7128891]

約数ペア:

[(1, 7128891), (3, 2376297), (7, 1018413), (9, 792099), (11, 648081), (21, 339471), (27, 264033), (33, 216027), (63, 113157), (77, 92583), (81, 88011), (99, 72009), (127, 56133), (189, 37719), (231, 30861), (243, 29337), (297, 24003), (381, 18711), (567, 12573), (693, 10287), (729, 9779), (889, 8019), (891, 8001), (1143, 6237), (1397, 5103), (1701, 4191), (2079, 3429), (2667, 2673)]