18420864

素因数分解:

$2^7\times 3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1$

素因数の和:131

約数の個数: 192

約数和(自身を含む): 62791200

約数和(自身を除く): 44370336

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 16, 21, 22, 24, 28, 32, 33, 42, 44, 48, 49, 56, 64, 66, 77, 84, 88, 89, 96, 98, 112, 128, 132, 147, 154, 168, 176, 178, 192, 196, 224, 231, 264, 267, 294, 308, 336, 352, 356, 384, 392, 448, 462, 528, 534, 539, 588, 616, 623, 672, 704, 712, 784, 896, 924, 979, 1056, 1068, 1078, 1176, 1232, 1246, 1344, 1408, 1424, 1568, 1617, 1848, 1869, 1958, 2112, 2136, 2156, 2352, 2464, 2492, 2688, 2848, 2937, 3136, 3234, 3696, 3738, 3916, 4224, 4272, 4312, 4361, 4704, 4928, 4984, 5696, 5874, 6272, 6468, 6853, 7392, 7476, 7832, 8544, 8624, 8722, 9408, 9856, 9968, 11392, 11748, 12936, 13083, 13706, 14784, 14952, 15664, 17088, 17248, 17444, 18816, 19936, 20559, 23496, 25872, 26166, 27412, 29568, 29904, 31328, 34176, 34496, 34888, 39872, 41118, 46992, 47971, 51744, 52332, 54824, 59808, 62656, 68992, 69776, 79744, 82236, 93984, 95942, 103488, 104664, 109648, 119616, 125312, 139552, 143913, 164472, 187968, 191884, 206976, 209328, 219296, 239232, 279104, 287826, 328944, 375936, 383768, 418656, 438592, 558208, 575652, 657888, 767536, 837312, 877184, 1151304, 1315776, 1535072, 1674624, 2302608, 2631552, 3070144, 4605216, 6140288, 9210432, 18420864]

約数ペア:

[(1, 18420864), (2, 9210432), (3, 6140288), (4, 4605216), (6, 3070144), (7, 2631552), (8, 2302608), (11, 1674624), (12, 1535072), (14, 1315776), (16, 1151304), (21, 877184), (22, 837312), (24, 767536), (28, 657888), (32, 575652), (33, 558208), (42, 438592), (44, 418656), (48, 383768), (49, 375936), (56, 328944), (64, 287826), (66, 279104), (77, 239232), (84, 219296), (88, 209328), (89, 206976), (96, 191884), (98, 187968), (112, 164472), (128, 143913), (132, 139552), (147, 125312), (154, 119616), (168, 109648), (176, 104664), (178, 103488), (192, 95942), (196, 93984), (224, 82236), (231, 79744), (264, 69776), (267, 68992), (294, 62656), (308, 59808), (336, 54824), (352, 52332), (356, 51744), (384, 47971), (392, 46992), (448, 41118), (462, 39872), (528, 34888), (534, 34496), (539, 34176), (588, 31328), (616, 29904), (623, 29568), (672, 27412), (704, 26166), (712, 25872), (784, 23496), (896, 20559), (924, 19936), (979, 18816), (1056, 17444), (1068, 17248), (1078, 17088), (1176, 15664), (1232, 14952), (1246, 14784), (1344, 13706), (1408, 13083), (1424, 12936), (1568, 11748), (1617, 11392), (1848, 9968), (1869, 9856), (1958, 9408), (2112, 8722), (2136, 8624), (2156, 8544), (2352, 7832), (2464, 7476), (2492, 7392), (2688, 6853), (2848, 6468), (2937, 6272), (3136, 5874), (3234, 5696), (3696, 4984), (3738, 4928), (3916, 4704), (4224, 4361), (4272, 4312)]