21005457984

素因数分解:

$2^6\times 3^2\times 7^2\times {\mathrm{751}}^1\times {\mathrm{991}}^1$

素因数の和:1774

約数の個数: 252

約数和(自身を含む): 70202316288

約数和(自身を除く): 49196858304

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 49, 56, 63, 64, 72, 84, 96, 98, 112, 126, 144, 147, 168, 192, 196, 224, 252, 288, 294, 336, 392, 441, 448, 504, 576, 588, 672, 751, 784, 882, 991, 1008, 1176, 1344, 1502, 1568, 1764, 1982, 2016, 2253, 2352, 2973, 3004, 3136, 3528, 3964, 4032, 4506, 4704, 5257, 5946, 6008, 6759, 6937, 7056, 7928, 8919, 9012, 9408, 10514, 11892, 12016, 13518, 13874, 14112, 15771, 15856, 17838, 18024, 20811, 21028, 23784, 24032, 27036, 27748, 28224, 31542, 31712, 35676, 36048, 36799, 41622, 42056, 47313, 47568, 48064, 48559, 54072, 55496, 62433, 63084, 63424, 71352, 72096, 73598, 83244, 84112, 94626, 95136, 97118, 108144, 110397, 110992, 124866, 126168, 142704, 144192, 145677, 147196, 166488, 168224, 189252, 190272, 194236, 216288, 220794, 221984, 249732, 252336, 285408, 291354, 294392, 331191, 332976, 336448, 378504, 388472, 432576, 437031, 441588, 443968, 499464, 504672, 570816, 582708, 588784, 662382, 665952, 744241, 757008, 776944, 874062, 883176, 998928, 1009344, 1165416, 1177568, 1324764, 1331904, 1488482, 1514016, 1553888, 1748124, 1766352, 1997856, 2232723, 2330832, 2355136, 2649528, 2976964, 3028032, 3107776, 3496248, 3532704, 3995712, 4465446, 4661664, 5209687, 5299056, 5953928, 6698169, 6992496, 7065408, 8930892, 9323328, 10419374, 10598112, 11907856, 13396338, 13984992, 15629061, 17861784, 20838748, 21196224, 23815712, 26792676, 27969984, 31258122, 35723568, 36467809, 41677496, 46887183, 47631424, 53585352, 62516244, 71447136, 72935618, 83354992, 93774366, 107170704, 109403427, 125032488, 142894272, 145871236, 166709984, 187548732, 214341408, 218806854, 250064976, 291742472, 328210281, 333419968, 375097464, 428682816, 437613708, 500129952, 583484944, 656420562, 750194928, 875227416, 1000259904, 1166969888, 1312841124, 1500389856, 1750454832, 2333939776, 2625682248, 3000779712, 3500909664, 5251364496, 7001819328, 10502728992, 21005457984]

約数ペア:

[(1, 21005457984), (2, 10502728992), (3, 7001819328), (4, 5251364496), (6, 3500909664), (7, 3000779712), (8, 2625682248), (9, 2333939776), (12, 1750454832), (14, 1500389856), (16, 1312841124), (18, 1166969888), (21, 1000259904), (24, 875227416), (28, 750194928), (32, 656420562), (36, 583484944), (42, 500129952), (48, 437613708), (49, 428682816), (56, 375097464), (63, 333419968), (64, 328210281), (72, 291742472), (84, 250064976), (96, 218806854), (98, 214341408), (112, 187548732), (126, 166709984), (144, 145871236), (147, 142894272), (168, 125032488), (192, 109403427), (196, 107170704), (224, 93774366), (252, 83354992), (288, 72935618), (294, 71447136), (336, 62516244), (392, 53585352), (441, 47631424), (448, 46887183), (504, 41677496), (576, 36467809), (588, 35723568), (672, 31258122), (751, 27969984), (784, 26792676), (882, 23815712), (991, 21196224), (1008, 20838748), (1176, 17861784), (1344, 15629061), (1502, 13984992), (1568, 13396338), (1764, 11907856), (1982, 10598112), (2016, 10419374), (2253, 9323328), (2352, 8930892), (2973, 7065408), (3004, 6992496), (3136, 6698169), (3528, 5953928), (3964, 5299056), (4032, 5209687), (4506, 4661664), (4704, 4465446), (5257, 3995712), (5946, 3532704), (6008, 3496248), (6759, 3107776), (6937, 3028032), (7056, 2976964), (7928, 2649528), (8919, 2355136), (9012, 2330832), (9408, 2232723), (10514, 1997856), (11892, 1766352), (12016, 1748124), (13518, 1553888), (13874, 1514016), (14112, 1488482), (15771, 1331904), (15856, 1324764), (17838, 1177568), (18024, 1165416), (20811, 1009344), (21028, 998928), (23784, 883176), (24032, 874062), (27036, 776944), (27748, 757008), (28224, 744241), (31542, 665952), (31712, 662382), (35676, 588784), (36048, 582708), (36799, 570816), (41622, 504672), (42056, 499464), (47313, 443968), (47568, 441588), (48064, 437031), (48559, 432576), (54072, 388472), (55496, 378504), (62433, 336448), (63084, 332976), (63424, 331191), (71352, 294392), (72096, 291354), (73598, 285408), (83244, 252336), (84112, 249732), (94626, 221984), (95136, 220794), (97118, 216288), (108144, 194236), (110397, 190272), (110992, 189252), (124866, 168224), (126168, 166488), (142704, 147196), (144192, 145677)]