20996976

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1$

素因数の和:84

約数の個数: 320

約数和(自身を含む): 79994880

約数和(自身を除く): 58997904

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 13, 14, 16, 19, 21, 22, 23, 24, 26, 28, 33, 38, 39, 42, 44, 46, 48, 52, 56, 57, 66, 69, 76, 77, 78, 84, 88, 91, 92, 104, 112, 114, 132, 133, 138, 143, 152, 154, 156, 161, 168, 176, 182, 184, 208, 209, 228, 231, 247, 253, 264, 266, 273, 276, 286, 299, 304, 308, 312, 322, 336, 364, 368, 399, 418, 429, 437, 456, 462, 483, 494, 506, 528, 532, 546, 552, 572, 598, 616, 624, 627, 644, 728, 741, 759, 798, 836, 858, 874, 897, 912, 924, 966, 988, 1001, 1012, 1064, 1092, 1104, 1144, 1196, 1232, 1254, 1288, 1311, 1456, 1463, 1482, 1518, 1596, 1672, 1716, 1729, 1748, 1771, 1794, 1848, 1932, 1976, 2002, 2024, 2093, 2128, 2184, 2288, 2392, 2508, 2576, 2622, 2717, 2926, 2964, 3003, 3036, 3059, 3192, 3289, 3344, 3432, 3458, 3496, 3542, 3588, 3696, 3864, 3952, 4004, 4048, 4186, 4368, 4389, 4784, 4807, 5016, 5187, 5244, 5313, 5434, 5681, 5852, 5928, 6006, 6072, 6118, 6279, 6384, 6578, 6864, 6916, 6992, 7084, 7176, 7728, 8008, 8151, 8372, 8778, 9177, 9614, 9867, 10032, 10374, 10488, 10626, 10868, 11362, 11704, 11856, 12012, 12144, 12236, 12558, 13156, 13832, 14168, 14352, 14421, 16016, 16302, 16744, 17043, 17556, 18354, 19019, 19228, 19734, 20748, 20976, 21252, 21736, 22724, 23023, 23408, 24024, 24472, 25116, 26312, 27664, 28336, 28842, 32604, 33488, 33649, 34086, 35112, 36708, 38038, 38456, 39468, 39767, 41496, 42504, 43472, 45448, 46046, 48048, 48944, 50232, 52624, 57057, 57684, 62491, 65208, 67298, 68172, 69069, 70224, 73416, 76076, 76912, 78936, 79534, 82992, 85008, 90896, 92092, 100464, 100947, 114114, 115368, 119301, 124982, 130416, 134596, 136344, 138138, 146832, 152152, 157872, 159068, 184184, 187473, 201894, 228228, 230736, 238602, 249964, 269192, 272688, 276276, 304304, 318136, 368368, 374946, 403788, 437437, 456456, 477204, 499928, 538384, 552552, 636272, 749892, 807576, 874874, 912912, 954408, 999856, 1105104, 1312311, 1499784, 1615152, 1749748, 1908816, 2624622, 2999568, 3499496, 5249244, 6998992, 10498488, 20996976]

約数ペア:

[(1, 20996976), (2, 10498488), (3, 6998992), (4, 5249244), (6, 3499496), (7, 2999568), (8, 2624622), (11, 1908816), (12, 1749748), (13, 1615152), (14, 1499784), (16, 1312311), (19, 1105104), (21, 999856), (22, 954408), (23, 912912), (24, 874874), (26, 807576), (28, 749892), (33, 636272), (38, 552552), (39, 538384), (42, 499928), (44, 477204), (46, 456456), (48, 437437), (52, 403788), (56, 374946), (57, 368368), (66, 318136), (69, 304304), (76, 276276), (77, 272688), (78, 269192), (84, 249964), (88, 238602), (91, 230736), (92, 228228), (104, 201894), (112, 187473), (114, 184184), (132, 159068), (133, 157872), (138, 152152), (143, 146832), (152, 138138), (154, 136344), (156, 134596), (161, 130416), (168, 124982), (176, 119301), (182, 115368), (184, 114114), (208, 100947), (209, 100464), (228, 92092), (231, 90896), (247, 85008), (253, 82992), (264, 79534), (266, 78936), (273, 76912), (276, 76076), (286, 73416), (299, 70224), (304, 69069), (308, 68172), (312, 67298), (322, 65208), (336, 62491), (364, 57684), (368, 57057), (399, 52624), (418, 50232), (429, 48944), (437, 48048), (456, 46046), (462, 45448), (483, 43472), (494, 42504), (506, 41496), (528, 39767), (532, 39468), (546, 38456), (552, 38038), (572, 36708), (598, 35112), (616, 34086), (624, 33649), (627, 33488), (644, 32604), (728, 28842), (741, 28336), (759, 27664), (798, 26312), (836, 25116), (858, 24472), (874, 24024), (897, 23408), (912, 23023), (924, 22724), (966, 21736), (988, 21252), (1001, 20976), (1012, 20748), (1064, 19734), (1092, 19228), (1104, 19019), (1144, 18354), (1196, 17556), (1232, 17043), (1254, 16744), (1288, 16302), (1311, 16016), (1456, 14421), (1463, 14352), (1482, 14168), (1518, 13832), (1596, 13156), (1672, 12558), (1716, 12236), (1729, 12144), (1748, 12012), (1771, 11856), (1794, 11704), (1848, 11362), (1932, 10868), (1976, 10626), (2002, 10488), (2024, 10374), (2093, 10032), (2128, 9867), (2184, 9614), (2288, 9177), (2392, 8778), (2508, 8372), (2576, 8151), (2622, 8008), (2717, 7728), (2926, 7176), (2964, 7084), (3003, 6992), (3036, 6916), (3059, 6864), (3192, 6578), (3289, 6384), (3344, 6279), (3432, 6118), (3458, 6072), (3496, 6006), (3542, 5928), (3588, 5852), (3696, 5681), (3864, 5434), (3952, 5313), (4004, 5244), (4048, 5187), (4186, 5016), (4368, 4807), (4389, 4784)]