27880281

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1$

素因数の和:148

約数の個数: 80

約数和(自身を含む): 51226560

約数和(自身を除く): 23346279

約数列:

[1, 3, 9, 11, 13, 27, 29, 33, 39, 81, 83, 87, 99, 117, 143, 249, 261, 297, 319, 351, 377, 429, 747, 783, 891, 913, 957, 1053, 1079, 1131, 1287, 2241, 2349, 2407, 2739, 2871, 3237, 3393, 3861, 4147, 6723, 7221, 8217, 8613, 9711, 10179, 11583, 11869, 12441, 21663, 24651, 25839, 26477, 29133, 30537, 31291, 35607, 37323, 64989, 73953, 79431, 87399, 93873, 106821, 111969, 194967, 238293, 281619, 320463, 335907, 344201, 714879, 844857, 961389, 1032603, 2144637, 2534571, 3097809, 9293427, 27880281]

約数ペア:

[(1, 27880281), (3, 9293427), (9, 3097809), (11, 2534571), (13, 2144637), (27, 1032603), (29, 961389), (33, 844857), (39, 714879), (81, 344201), (83, 335907), (87, 320463), (99, 281619), (117, 238293), (143, 194967), (249, 111969), (261, 106821), (297, 93873), (319, 87399), (351, 79431), (377, 73953), (429, 64989), (747, 37323), (783, 35607), (891, 31291), (913, 30537), (957, 29133), (1053, 26477), (1079, 25839), (1131, 24651), (1287, 21663), (2241, 12441), (2349, 11869), (2407, 11583), (2739, 10179), (2871, 9711), (3237, 8613), (3393, 8217), (3861, 7221), (4147, 6723)]