21697368

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{199}}^1$

素因数の和:285

約数の個数: 128

約数和(自身を含む): 69120000

約数和(自身を除く): 47422632

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 21, 22, 24, 28, 33, 42, 44, 56, 59, 66, 77, 84, 88, 118, 132, 154, 168, 177, 199, 231, 236, 264, 308, 354, 398, 413, 462, 472, 597, 616, 649, 708, 796, 826, 924, 1194, 1239, 1298, 1393, 1416, 1592, 1652, 1848, 1947, 2189, 2388, 2478, 2596, 2786, 3304, 3894, 4179, 4378, 4543, 4776, 4956, 5192, 5572, 6567, 7788, 8358, 8756, 9086, 9912, 11144, 11741, 13134, 13629, 15323, 15576, 16716, 17512, 18172, 23482, 26268, 27258, 30646, 33432, 35223, 36344, 45969, 46964, 52536, 54516, 61292, 70446, 82187, 91938, 93928, 109032, 122584, 129151, 140892, 164374, 183876, 246561, 258302, 281784, 328748, 367752, 387453, 493122, 516604, 657496, 774906, 904057, 986244, 1033208, 1549812, 1808114, 1972488, 2712171, 3099624, 3616228, 5424342, 7232456, 10848684, 21697368]

約数ペア:

[(1, 21697368), (2, 10848684), (3, 7232456), (4, 5424342), (6, 3616228), (7, 3099624), (8, 2712171), (11, 1972488), (12, 1808114), (14, 1549812), (21, 1033208), (22, 986244), (24, 904057), (28, 774906), (33, 657496), (42, 516604), (44, 493122), (56, 387453), (59, 367752), (66, 328748), (77, 281784), (84, 258302), (88, 246561), (118, 183876), (132, 164374), (154, 140892), (168, 129151), (177, 122584), (199, 109032), (231, 93928), (236, 91938), (264, 82187), (308, 70446), (354, 61292), (398, 54516), (413, 52536), (462, 46964), (472, 45969), (597, 36344), (616, 35223), (649, 33432), (708, 30646), (796, 27258), (826, 26268), (924, 23482), (1194, 18172), (1239, 17512), (1298, 16716), (1393, 15576), (1416, 15323), (1592, 13629), (1652, 13134), (1848, 11741), (1947, 11144), (2189, 9912), (2388, 9086), (2478, 8756), (2596, 8358), (2786, 7788), (3304, 6567), (3894, 5572), (4179, 5192), (4378, 4956), (4543, 4776)]