21641131904

素因数分解:

$2^7\times 7^1\times {\mathrm{149}}^1\times {\mathrm{173}}^1\times {\mathrm{937}}^1$

素因数の和:1280

約数の個数: 128

約数和(自身を含む): 49942872000

約数和(自身を除く): 28301740096

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 149, 173, 224, 298, 346, 448, 596, 692, 896, 937, 1043, 1192, 1211, 1384, 1874, 2086, 2384, 2422, 2768, 3748, 4172, 4768, 4844, 5536, 6559, 7496, 8344, 9536, 9688, 11072, 13118, 14992, 16688, 19072, 19376, 22144, 25777, 26236, 29984, 33376, 38752, 51554, 52472, 59968, 66752, 77504, 103108, 104944, 119936, 133504, 139613, 155008, 162101, 180439, 206216, 209888, 279226, 324202, 360878, 412432, 419776, 558452, 648404, 721756, 824864, 839552, 977291, 1116904, 1134707, 1296808, 1443512, 1649728, 1954582, 2233808, 2269414, 2593616, 2887024, 3299456, 3909164, 4467616, 4538828, 5187232, 5774048, 7818328, 8935232, 9077656, 10374464, 11548096, 15636656, 17870464, 18155312, 20748928, 23096192, 24153049, 31273312, 36310624, 48306098, 62546624, 72621248, 96612196, 125093248, 145242496, 169071343, 193224392, 338142686, 386448784, 676285372, 772897568, 1352570744, 1545795136, 2705141488, 3091590272, 5410282976, 10820565952, 21641131904]

約数ペア:

[(1, 21641131904), (2, 10820565952), (4, 5410282976), (7, 3091590272), (8, 2705141488), (14, 1545795136), (16, 1352570744), (28, 772897568), (32, 676285372), (56, 386448784), (64, 338142686), (112, 193224392), (128, 169071343), (149, 145242496), (173, 125093248), (224, 96612196), (298, 72621248), (346, 62546624), (448, 48306098), (596, 36310624), (692, 31273312), (896, 24153049), (937, 23096192), (1043, 20748928), (1192, 18155312), (1211, 17870464), (1384, 15636656), (1874, 11548096), (2086, 10374464), (2384, 9077656), (2422, 8935232), (2768, 7818328), (3748, 5774048), (4172, 5187232), (4768, 4538828), (4844, 4467616), (5536, 3909164), (6559, 3299456), (7496, 2887024), (8344, 2593616), (9536, 2269414), (9688, 2233808), (11072, 1954582), (13118, 1649728), (14992, 1443512), (16688, 1296808), (19072, 1134707), (19376, 1116904), (22144, 977291), (25777, 839552), (26236, 824864), (29984, 721756), (33376, 648404), (38752, 558452), (51554, 419776), (52472, 412432), (59968, 360878), (66752, 324202), (77504, 279226), (103108, 209888), (104944, 206216), (119936, 180439), (133504, 162101), (139613, 155008)]