21318528

素因数分解:

$2^7\times 3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{103}}^1$

素因数の和:145

約数の個数: 192

約数和(自身を含む): 72558720

約数和(自身を除く): 51240192

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, 96, 98, 103, 112, 128, 132, 147, 154, 168, 176, 192, 196, 206, 224, 231, 264, 294, 308, 309, 336, 352, 384, 392, 412, 448, 462, 528, 539, 588, 616, 618, 672, 704, 721, 784, 824, 896, 924, 1056, 1078, 1133, 1176, 1232, 1236, 1344, 1408, 1442, 1568, 1617, 1648, 1848, 2112, 2156, 2163, 2266, 2352, 2464, 2472, 2688, 2884, 3136, 3234, 3296, 3399, 3696, 4224, 4312, 4326, 4532, 4704, 4928, 4944, 5047, 5768, 6272, 6468, 6592, 6798, 7392, 7931, 8624, 8652, 9064, 9408, 9856, 9888, 10094, 11536, 12936, 13184, 13596, 14784, 15141, 15862, 17248, 17304, 18128, 18816, 19776, 20188, 23072, 23793, 25872, 27192, 29568, 30282, 31724, 34496, 34608, 36256, 39552, 40376, 46144, 47586, 51744, 54384, 55517, 60564, 63448, 68992, 69216, 72512, 80752, 92288, 95172, 103488, 108768, 111034, 121128, 126896, 138432, 145024, 161504, 166551, 190344, 206976, 217536, 222068, 242256, 253792, 276864, 323008, 333102, 380688, 435072, 444136, 484512, 507584, 646016, 666204, 761376, 888272, 969024, 1015168, 1332408, 1522752, 1776544, 1938048, 2664816, 3045504, 3553088, 5329632, 7106176, 10659264, 21318528]

約数ペア:

[(1, 21318528), (2, 10659264), (3, 7106176), (4, 5329632), (6, 3553088), (7, 3045504), (8, 2664816), (11, 1938048), (12, 1776544), (14, 1522752), (16, 1332408), (21, 1015168), (22, 969024), (24, 888272), (28, 761376), (32, 666204), (33, 646016), (42, 507584), (44, 484512), (48, 444136), (49, 435072), (56, 380688), (64, 333102), (66, 323008), (77, 276864), (84, 253792), (88, 242256), (96, 222068), (98, 217536), (103, 206976), (112, 190344), (128, 166551), (132, 161504), (147, 145024), (154, 138432), (168, 126896), (176, 121128), (192, 111034), (196, 108768), (206, 103488), (224, 95172), (231, 92288), (264, 80752), (294, 72512), (308, 69216), (309, 68992), (336, 63448), (352, 60564), (384, 55517), (392, 54384), (412, 51744), (448, 47586), (462, 46144), (528, 40376), (539, 39552), (588, 36256), (616, 34608), (618, 34496), (672, 31724), (704, 30282), (721, 29568), (784, 27192), (824, 25872), (896, 23793), (924, 23072), (1056, 20188), (1078, 19776), (1133, 18816), (1176, 18128), (1232, 17304), (1236, 17248), (1344, 15862), (1408, 15141), (1442, 14784), (1568, 13596), (1617, 13184), (1648, 12936), (1848, 11536), (2112, 10094), (2156, 9888), (2163, 9856), (2266, 9408), (2352, 9064), (2464, 8652), (2472, 8624), (2688, 7931), (2884, 7392), (3136, 6798), (3234, 6592), (3296, 6468), (3399, 6272), (3696, 5768), (4224, 5047), (4312, 4944), (4326, 4928), (4532, 4704)]