21720835968

素因数分解:

$2^7\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{1447}}^1$

素因数の和:1605

約数の個数: 256

約数和(自身を含む): 64844451840

約数和(自身を除く): 43123615872

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 31, 32, 39, 48, 52, 62, 64, 78, 93, 96, 97, 104, 124, 128, 156, 186, 192, 194, 208, 248, 291, 312, 372, 384, 388, 403, 416, 496, 582, 624, 744, 776, 806, 832, 992, 1164, 1209, 1248, 1261, 1447, 1488, 1552, 1612, 1664, 1984, 2328, 2418, 2496, 2522, 2894, 2976, 3007, 3104, 3224, 3783, 3968, 4341, 4656, 4836, 4992, 5044, 5788, 5952, 6014, 6208, 6448, 7566, 8682, 9021, 9312, 9672, 10088, 11576, 11904, 12028, 12416, 12896, 15132, 17364, 18042, 18624, 18811, 19344, 20176, 23152, 24056, 25792, 30264, 34728, 36084, 37248, 37622, 38688, 39091, 40352, 44857, 46304, 48112, 51584, 56433, 60528, 69456, 72168, 75244, 77376, 78182, 80704, 89714, 92608, 96224, 112866, 117273, 121056, 134571, 138912, 140359, 144336, 150488, 154752, 156364, 161408, 179428, 185216, 192448, 225732, 234546, 242112, 269142, 277824, 280718, 288672, 300976, 312728, 358856, 384896, 421077, 451464, 469092, 484224, 538284, 555648, 561436, 577344, 583141, 601952, 625456, 717712, 842154, 902928, 938184, 1076568, 1122872, 1154688, 1166282, 1203904, 1250912, 1435424, 1684308, 1749423, 1805856, 1824667, 1876368, 2153136, 2245744, 2332564, 2407808, 2501824, 2870848, 3368616, 3498846, 3611712, 3649334, 3752736, 4306272, 4351129, 4491488, 4665128, 5003648, 5474001, 5741696, 6737232, 6997692, 7223424, 7298668, 7505472, 8612544, 8702258, 8982976, 9330256, 10948002, 13053387, 13474464, 13995384, 14597336, 15010944, 17225088, 17404516, 17965952, 18660512, 21896004, 26106774, 26948928, 27990768, 29194672, 34809032, 37321024, 43792008, 52213548, 53897856, 55981536, 56564677, 58389344, 69618064, 74642048, 87584016, 104427096, 111963072, 113129354, 116778688, 139236128, 169694031, 175168032, 208854192, 223926144, 226258708, 233557376, 278472256, 339388062, 350336064, 417708384, 452517416, 556944512, 678776124, 700672128, 835416768, 905034832, 1357552248, 1670833536, 1810069664, 2715104496, 3620139328, 5430208992, 7240278656, 10860417984, 21720835968]

約数ペア:

[(1, 21720835968), (2, 10860417984), (3, 7240278656), (4, 5430208992), (6, 3620139328), (8, 2715104496), (12, 1810069664), (13, 1670833536), (16, 1357552248), (24, 905034832), (26, 835416768), (31, 700672128), (32, 678776124), (39, 556944512), (48, 452517416), (52, 417708384), (62, 350336064), (64, 339388062), (78, 278472256), (93, 233557376), (96, 226258708), (97, 223926144), (104, 208854192), (124, 175168032), (128, 169694031), (156, 139236128), (186, 116778688), (192, 113129354), (194, 111963072), (208, 104427096), (248, 87584016), (291, 74642048), (312, 69618064), (372, 58389344), (384, 56564677), (388, 55981536), (403, 53897856), (416, 52213548), (496, 43792008), (582, 37321024), (624, 34809032), (744, 29194672), (776, 27990768), (806, 26948928), (832, 26106774), (992, 21896004), (1164, 18660512), (1209, 17965952), (1248, 17404516), (1261, 17225088), (1447, 15010944), (1488, 14597336), (1552, 13995384), (1612, 13474464), (1664, 13053387), (1984, 10948002), (2328, 9330256), (2418, 8982976), (2496, 8702258), (2522, 8612544), (2894, 7505472), (2976, 7298668), (3007, 7223424), (3104, 6997692), (3224, 6737232), (3783, 5741696), (3968, 5474001), (4341, 5003648), (4656, 4665128), (4836, 4491488), (4992, 4351129), (5044, 4306272), (5788, 3752736), (5952, 3649334), (6014, 3611712), (6208, 3498846), (6448, 3368616), (7566, 2870848), (8682, 2501824), (9021, 2407808), (9312, 2332564), (9672, 2245744), (10088, 2153136), (11576, 1876368), (11904, 1824667), (12028, 1805856), (12416, 1749423), (12896, 1684308), (15132, 1435424), (17364, 1250912), (18042, 1203904), (18624, 1166282), (18811, 1154688), (19344, 1122872), (20176, 1076568), (23152, 938184), (24056, 902928), (25792, 842154), (30264, 717712), (34728, 625456), (36084, 601952), (37248, 583141), (37622, 577344), (38688, 561436), (39091, 555648), (40352, 538284), (44857, 484224), (46304, 469092), (48112, 451464), (51584, 421077), (56433, 384896), (60528, 358856), (69456, 312728), (72168, 300976), (75244, 288672), (77376, 280718), (78182, 277824), (80704, 269142), (89714, 242112), (92608, 234546), (96224, 225732), (112866, 192448), (117273, 185216), (121056, 179428), (134571, 161408), (138912, 156364), (140359, 154752), (144336, 150488)]