21000741888

素因数分解:

$2^{10}\times 3^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{10973}}^1$

素因数の和:11092

約数の個数: 176

約数和(自身を含む): 64695680640

約数和(自身を除く): 43694938752

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 64, 84, 89, 96, 112, 128, 168, 178, 192, 224, 256, 267, 336, 356, 384, 448, 512, 534, 623, 672, 712, 768, 896, 1024, 1068, 1246, 1344, 1424, 1536, 1792, 1869, 2136, 2492, 2688, 2848, 3072, 3584, 3738, 4272, 4984, 5376, 5696, 7168, 7476, 8544, 9968, 10752, 10973, 11392, 14952, 17088, 19936, 21504, 21946, 22784, 29904, 32919, 34176, 39872, 43892, 45568, 59808, 65838, 68352, 76811, 79744, 87784, 91136, 119616, 131676, 136704, 153622, 159488, 175568, 230433, 239232, 263352, 273408, 307244, 318976, 351136, 460866, 478464, 526704, 614488, 637952, 702272, 921732, 956928, 976597, 1053408, 1228976, 1404544, 1843464, 1913856, 1953194, 2106816, 2457952, 2809088, 2929791, 3686928, 3906388, 4213632, 4915904, 5618176, 5859582, 6836179, 7373856, 7812776, 8427264, 9831808, 11236352, 11719164, 13672358, 14747712, 15625552, 16854528, 19663616, 20508537, 23438328, 27344716, 29495424, 31251104, 33709056, 39327232, 41017074, 46876656, 54689432, 58990848, 62502208, 78654464, 82034148, 93753312, 109378864, 117981696, 125004416, 164068296, 187506624, 218757728, 235963392, 250008832, 328136592, 375013248, 437515456, 500017664, 656273184, 750026496, 875030912, 1000035328, 1312546368, 1500052992, 1750061824, 2625092736, 3000105984, 3500123648, 5250185472, 7000247296, 10500370944, 21000741888]

約数ペア:

[(1, 21000741888), (2, 10500370944), (3, 7000247296), (4, 5250185472), (6, 3500123648), (7, 3000105984), (8, 2625092736), (12, 1750061824), (14, 1500052992), (16, 1312546368), (21, 1000035328), (24, 875030912), (28, 750026496), (32, 656273184), (42, 500017664), (48, 437515456), (56, 375013248), (64, 328136592), (84, 250008832), (89, 235963392), (96, 218757728), (112, 187506624), (128, 164068296), (168, 125004416), (178, 117981696), (192, 109378864), (224, 93753312), (256, 82034148), (267, 78654464), (336, 62502208), (356, 58990848), (384, 54689432), (448, 46876656), (512, 41017074), (534, 39327232), (623, 33709056), (672, 31251104), (712, 29495424), (768, 27344716), (896, 23438328), (1024, 20508537), (1068, 19663616), (1246, 16854528), (1344, 15625552), (1424, 14747712), (1536, 13672358), (1792, 11719164), (1869, 11236352), (2136, 9831808), (2492, 8427264), (2688, 7812776), (2848, 7373856), (3072, 6836179), (3584, 5859582), (3738, 5618176), (4272, 4915904), (4984, 4213632), (5376, 3906388), (5696, 3686928), (7168, 2929791), (7476, 2809088), (8544, 2457952), (9968, 2106816), (10752, 1953194), (10973, 1913856), (11392, 1843464), (14952, 1404544), (17088, 1228976), (19936, 1053408), (21504, 976597), (21946, 956928), (22784, 921732), (29904, 702272), (32919, 637952), (34176, 614488), (39872, 526704), (43892, 478464), (45568, 460866), (59808, 351136), (65838, 318976), (68352, 307244), (76811, 273408), (79744, 263352), (87784, 239232), (91136, 230433), (119616, 175568), (131676, 159488), (136704, 153622)]