21079968

素因数分解:

$2^5\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1$

素因数の和:179

約数の個数: 192

約数和(自身を含む): 72253440

約数和(自身を除く): 51173472

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 16, 19, 21, 24, 26, 28, 32, 38, 39, 42, 48, 52, 56, 57, 76, 78, 84, 91, 96, 104, 112, 114, 127, 133, 152, 156, 168, 182, 208, 224, 228, 247, 254, 266, 273, 304, 312, 336, 364, 381, 399, 416, 456, 494, 508, 532, 546, 608, 624, 672, 728, 741, 762, 798, 889, 912, 988, 1016, 1064, 1092, 1248, 1456, 1482, 1524, 1596, 1651, 1729, 1778, 1824, 1976, 2032, 2128, 2184, 2413, 2667, 2912, 2964, 3048, 3192, 3302, 3458, 3556, 3952, 4064, 4256, 4368, 4826, 4953, 5187, 5334, 5928, 6096, 6384, 6604, 6916, 7112, 7239, 7904, 8736, 9652, 9906, 10374, 10668, 11557, 11856, 12192, 12768, 13208, 13832, 14224, 14478, 16891, 19304, 19812, 20748, 21336, 23114, 23712, 26416, 27664, 28448, 28956, 31369, 33782, 34671, 38608, 39624, 41496, 42672, 46228, 50673, 52832, 55328, 57912, 62738, 67564, 69342, 77216, 79248, 82992, 85344, 92456, 94107, 101346, 115824, 125476, 135128, 138684, 158496, 165984, 184912, 188214, 202692, 219583, 231648, 250952, 270256, 277368, 369824, 376428, 405384, 439166, 501904, 540512, 554736, 658749, 752856, 810768, 878332, 1003808, 1109472, 1317498, 1505712, 1621536, 1756664, 2634996, 3011424, 3513328, 5269992, 7026656, 10539984, 21079968]

約数ペア:

[(1, 21079968), (2, 10539984), (3, 7026656), (4, 5269992), (6, 3513328), (7, 3011424), (8, 2634996), (12, 1756664), (13, 1621536), (14, 1505712), (16, 1317498), (19, 1109472), (21, 1003808), (24, 878332), (26, 810768), (28, 752856), (32, 658749), (38, 554736), (39, 540512), (42, 501904), (48, 439166), (52, 405384), (56, 376428), (57, 369824), (76, 277368), (78, 270256), (84, 250952), (91, 231648), (96, 219583), (104, 202692), (112, 188214), (114, 184912), (127, 165984), (133, 158496), (152, 138684), (156, 135128), (168, 125476), (182, 115824), (208, 101346), (224, 94107), (228, 92456), (247, 85344), (254, 82992), (266, 79248), (273, 77216), (304, 69342), (312, 67564), (336, 62738), (364, 57912), (381, 55328), (399, 52832), (416, 50673), (456, 46228), (494, 42672), (508, 41496), (532, 39624), (546, 38608), (608, 34671), (624, 33782), (672, 31369), (728, 28956), (741, 28448), (762, 27664), (798, 26416), (889, 23712), (912, 23114), (988, 21336), (1016, 20748), (1064, 19812), (1092, 19304), (1248, 16891), (1456, 14478), (1482, 14224), (1524, 13832), (1596, 13208), (1651, 12768), (1729, 12192), (1778, 11856), (1824, 11557), (1976, 10668), (2032, 10374), (2128, 9906), (2184, 9652), (2413, 8736), (2667, 7904), (2912, 7239), (2964, 7112), (3048, 6916), (3192, 6604), (3302, 6384), (3458, 6096), (3556, 5928), (3952, 5334), (4064, 5187), (4256, 4953), (4368, 4826)]