71983989

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1$

素因数の和:132

約数の個数: 108

約数和(自身を含む): 141916320

約数和(自身を除く): 69932331

約数列:

[1, 3, 7, 9, 11, 19, 21, 33, 49, 57, 63, 71, 77, 99, 121, 133, 147, 171, 209, 213, 231, 363, 399, 441, 497, 539, 627, 639, 693, 781, 847, 931, 1089, 1197, 1349, 1463, 1491, 1617, 1881, 2299, 2343, 2541, 2793, 3479, 4047, 4389, 4473, 4851, 5467, 5929, 6897, 7029, 7623, 8379, 8591, 9443, 10241, 10437, 12141, 13167, 14839, 16093, 16401, 17787, 20691, 25773, 28329, 30723, 31311, 38269, 44517, 48279, 49203, 53361, 60137, 66101, 77319, 84987, 92169, 103873, 112651, 114807, 133551, 144837, 163229, 180411, 198303, 311619, 337953, 344421, 420959, 489687, 541233, 594909, 727111, 934857, 1013859, 1142603, 1262877, 1469061, 2181333, 3427809, 3788631, 6543999, 7998221, 10283427, 23994663, 71983989]

約数ペア:

[(1, 71983989), (3, 23994663), (7, 10283427), (9, 7998221), (11, 6543999), (19, 3788631), (21, 3427809), (33, 2181333), (49, 1469061), (57, 1262877), (63, 1142603), (71, 1013859), (77, 934857), (99, 727111), (121, 594909), (133, 541233), (147, 489687), (171, 420959), (209, 344421), (213, 337953), (231, 311619), (363, 198303), (399, 180411), (441, 163229), (497, 144837), (539, 133551), (627, 114807), (639, 112651), (693, 103873), (781, 92169), (847, 84987), (931, 77319), (1089, 66101), (1197, 60137), (1349, 53361), (1463, 49203), (1491, 48279), (1617, 44517), (1881, 38269), (2299, 31311), (2343, 30723), (2541, 28329), (2793, 25773), (3479, 20691), (4047, 17787), (4389, 16401), (4473, 16093), (4851, 14839), (5467, 13167), (5929, 12141), (6897, 10437), (7029, 10241), (7623, 9443), (8379, 8591)]