12999987

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1$

素因数の和:90

約数の個数: 96

約数和(自身を含む): 26703360

約数和(自身を除く): 13703373

約数列:

[1, 3, 7, 9, 11, 13, 21, 27, 33, 37, 39, 63, 77, 91, 99, 111, 117, 143, 169, 189, 231, 259, 273, 297, 333, 351, 407, 429, 481, 507, 693, 777, 819, 999, 1001, 1183, 1221, 1287, 1443, 1521, 1859, 2079, 2331, 2457, 2849, 3003, 3367, 3549, 3663, 3861, 4329, 4563, 5291, 5577, 6253, 6993, 8547, 9009, 10101, 10647, 10989, 12987, 13013, 15873, 16731, 18759, 25641, 27027, 30303, 31941, 37037, 39039, 43771, 47619, 50193, 56277, 68783, 76923, 90909, 111111, 117117, 131313, 142857, 168831, 206349, 333333, 351351, 393939, 481481, 619047, 999999, 1181817, 1444443, 1857141, 4333329, 12999987]

約数ペア:

[(1, 12999987), (3, 4333329), (7, 1857141), (9, 1444443), (11, 1181817), (13, 999999), (21, 619047), (27, 481481), (33, 393939), (37, 351351), (39, 333333), (63, 206349), (77, 168831), (91, 142857), (99, 131313), (111, 117117), (117, 111111), (143, 90909), (169, 76923), (189, 68783), (231, 56277), (259, 50193), (273, 47619), (297, 43771), (333, 39039), (351, 37037), (407, 31941), (429, 30303), (481, 27027), (507, 25641), (693, 18759), (777, 16731), (819, 15873), (999, 13013), (1001, 12987), (1183, 10989), (1221, 10647), (1287, 10101), (1443, 9009), (1521, 8547), (1859, 6993), (2079, 6253), (2331, 5577), (2457, 5291), (2849, 4563), (3003, 4329), (3367, 3861), (3549, 3663)]