900890991

素因数分解:

$3^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{271}}^1$

素因数の和:355

約数の個数: 160

約数和(自身を含む): 1857816576

約数和(自身を除く): 956925585

約数列:

[1, 3, 7, 9, 11, 13, 21, 27, 33, 39, 41, 63, 77, 81, 91, 99, 117, 123, 143, 189, 231, 271, 273, 287, 297, 351, 369, 429, 451, 533, 567, 693, 813, 819, 861, 891, 1001, 1053, 1107, 1287, 1353, 1599, 1897, 2079, 2439, 2457, 2583, 2981, 3003, 3157, 3321, 3523, 3731, 3861, 4059, 4797, 5691, 5863, 6237, 7317, 7371, 7749, 8943, 9009, 9471, 10569, 11111, 11193, 11583, 12177, 14391, 17073, 17589, 20867, 21951, 23247, 24661, 26829, 27027, 28413, 31707, 33333, 33579, 36531, 38753, 41041, 43173, 51219, 52767, 62601, 73983, 77777, 80487, 81081, 85239, 95121, 99999, 100737, 116259, 122221, 123123, 144443, 153657, 158301, 187803, 221949, 233331, 241461, 255717, 271271, 285363, 299997, 302211, 348777, 366663, 369369, 433329, 474903, 563409, 665847, 699993, 813813, 855547, 899991, 1011101, 1046331, 1099989, 1108107, 1299987, 1588873, 1690227, 1997541, 2099979, 2441439, 2566641, 3033303, 3138993, 3299967, 3324321, 3899961, 4766619, 6299937, 7324317, 7699923, 9099909, 9899901, 11122111, 11699883, 14299857, 21972951, 23099769, 27299727, 33366333, 42899571, 69299307, 81899181, 100098999, 128698713, 300296997, 900890991]

約数ペア:

[(1, 900890991), (3, 300296997), (7, 128698713), (9, 100098999), (11, 81899181), (13, 69299307), (21, 42899571), (27, 33366333), (33, 27299727), (39, 23099769), (41, 21972951), (63, 14299857), (77, 11699883), (81, 11122111), (91, 9899901), (99, 9099909), (117, 7699923), (123, 7324317), (143, 6299937), (189, 4766619), (231, 3899961), (271, 3324321), (273, 3299967), (287, 3138993), (297, 3033303), (351, 2566641), (369, 2441439), (429, 2099979), (451, 1997541), (533, 1690227), (567, 1588873), (693, 1299987), (813, 1108107), (819, 1099989), (861, 1046331), (891, 1011101), (1001, 899991), (1053, 855547), (1107, 813813), (1287, 699993), (1353, 665847), (1599, 563409), (1897, 474903), (2079, 433329), (2439, 369369), (2457, 366663), (2583, 348777), (2981, 302211), (3003, 299997), (3157, 285363), (3321, 271271), (3523, 255717), (3731, 241461), (3861, 233331), (4059, 221949), (4797, 187803), (5691, 158301), (5863, 153657), (6237, 144443), (7317, 123123), (7371, 122221), (7749, 116259), (8943, 100737), (9009, 99999), (9471, 95121), (10569, 85239), (11111, 81081), (11193, 80487), (11583, 77777), (12177, 73983), (14391, 62601), (17073, 52767), (17589, 51219), (20867, 43173), (21951, 41041), (23247, 38753), (24661, 36531), (26829, 33579), (27027, 33333), (28413, 31707)]