18731328

素因数分解:

$2^6\times 3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{181}}^1$

素因数の和:221

約数の個数: 168

約数和(自身を含む): 63239904

約数和(自身を除く): 44508576

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, 112, 132, 147, 154, 168, 176, 181, 192, 196, 224, 231, 264, 294, 308, 336, 352, 362, 392, 448, 462, 528, 539, 543, 588, 616, 672, 704, 724, 784, 924, 1056, 1078, 1086, 1176, 1232, 1267, 1344, 1448, 1568, 1617, 1848, 1991, 2112, 2156, 2172, 2352, 2464, 2534, 2896, 3136, 3234, 3696, 3801, 3982, 4312, 4344, 4704, 4928, 5068, 5792, 5973, 6468, 7392, 7602, 7964, 8624, 8688, 8869, 9408, 10136, 11584, 11946, 12936, 13937, 14784, 15204, 15928, 17248, 17376, 17738, 20272, 23892, 25872, 26607, 27874, 30408, 31856, 34496, 34752, 35476, 40544, 41811, 47784, 51744, 53214, 55748, 60816, 63712, 70952, 81088, 83622, 95568, 97559, 103488, 106428, 111496, 121632, 127424, 141904, 167244, 191136, 195118, 212856, 222992, 243264, 283808, 292677, 334488, 382272, 390236, 425712, 445984, 567616, 585354, 668976, 780472, 851424, 891968, 1170708, 1337952, 1560944, 1702848, 2341416, 2675904, 3121888, 4682832, 6243776, 9365664, 18731328]

約数ペア:

[(1, 18731328), (2, 9365664), (3, 6243776), (4, 4682832), (6, 3121888), (7, 2675904), (8, 2341416), (11, 1702848), (12, 1560944), (14, 1337952), (16, 1170708), (21, 891968), (22, 851424), (24, 780472), (28, 668976), (32, 585354), (33, 567616), (42, 445984), (44, 425712), (48, 390236), (49, 382272), (56, 334488), (64, 292677), (66, 283808), (77, 243264), (84, 222992), (88, 212856), (96, 195118), (98, 191136), (112, 167244), (132, 141904), (147, 127424), (154, 121632), (168, 111496), (176, 106428), (181, 103488), (192, 97559), (196, 95568), (224, 83622), (231, 81088), (264, 70952), (294, 63712), (308, 60816), (336, 55748), (352, 53214), (362, 51744), (392, 47784), (448, 41811), (462, 40544), (528, 35476), (539, 34752), (543, 34496), (588, 31856), (616, 30408), (672, 27874), (704, 26607), (724, 25872), (784, 23892), (924, 20272), (1056, 17738), (1078, 17376), (1086, 17248), (1176, 15928), (1232, 15204), (1267, 14784), (1344, 13937), (1448, 12936), (1568, 11946), (1617, 11584), (1848, 10136), (1991, 9408), (2112, 8869), (2156, 8688), (2172, 8624), (2352, 7964), (2464, 7602), (2534, 7392), (2896, 6468), (3136, 5973), (3234, 5792), (3696, 5068), (3801, 4928), (3982, 4704), (4312, 4344)]