2999997

素因数分解:

$3^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1$

素因数の和:80

約数の個数: 80

約数和(自身を含む): 6179712

約数和(自身を除く): 3179715

約数列:

[1, 3, 7, 9, 11, 13, 21, 27, 33, 37, 39, 63, 77, 81, 91, 99, 111, 117, 143, 189, 231, 259, 273, 297, 333, 351, 407, 429, 481, 567, 693, 777, 819, 891, 999, 1001, 1053, 1221, 1287, 1443, 2079, 2331, 2457, 2849, 2997, 3003, 3367, 3663, 3861, 4329, 5291, 6237, 6993, 7371, 8547, 9009, 10101, 10989, 11583, 12987, 15873, 20979, 25641, 27027, 30303, 32967, 37037, 38961, 47619, 76923, 81081, 90909, 111111, 142857, 230769, 272727, 333333, 428571, 999999, 2999997]

約数ペア:

[(1, 2999997), (3, 999999), (7, 428571), (9, 333333), (11, 272727), (13, 230769), (21, 142857), (27, 111111), (33, 90909), (37, 81081), (39, 76923), (63, 47619), (77, 38961), (81, 37037), (91, 32967), (99, 30303), (111, 27027), (117, 25641), (143, 20979), (189, 15873), (231, 12987), (259, 11583), (273, 10989), (297, 10101), (333, 9009), (351, 8547), (407, 7371), (429, 6993), (481, 6237), (567, 5291), (693, 4329), (777, 3861), (819, 3663), (891, 3367), (999, 3003), (1001, 2997), (1053, 2849), (1221, 2457), (1287, 2331), (1443, 2079)]