18719008

素因数分解:

$2^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1$

素因数の和:206

約数の個数: 96

約数和(自身を含む): 47029248

約数和(自身を除く): 28310240

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 56, 71, 77, 88, 107, 112, 142, 154, 176, 214, 224, 284, 308, 352, 428, 497, 568, 616, 749, 781, 856, 994, 1136, 1177, 1232, 1498, 1562, 1712, 1988, 2272, 2354, 2464, 2996, 3124, 3424, 3976, 4708, 5467, 5992, 6248, 7597, 7952, 8239, 9416, 10934, 11984, 12496, 15194, 15904, 16478, 18832, 21868, 23968, 24992, 30388, 32956, 37664, 43736, 53179, 60776, 65912, 83567, 87472, 106358, 121552, 131824, 167134, 174944, 212716, 243104, 263648, 334268, 425432, 584969, 668536, 850864, 1169938, 1337072, 1701728, 2339876, 2674144, 4679752, 9359504, 18719008]

約数ペア:

[(1, 18719008), (2, 9359504), (4, 4679752), (7, 2674144), (8, 2339876), (11, 1701728), (14, 1337072), (16, 1169938), (22, 850864), (28, 668536), (32, 584969), (44, 425432), (56, 334268), (71, 263648), (77, 243104), (88, 212716), (107, 174944), (112, 167134), (142, 131824), (154, 121552), (176, 106358), (214, 87472), (224, 83567), (284, 65912), (308, 60776), (352, 53179), (428, 43736), (497, 37664), (568, 32956), (616, 30388), (749, 24992), (781, 23968), (856, 21868), (994, 18832), (1136, 16478), (1177, 15904), (1232, 15194), (1498, 12496), (1562, 11984), (1712, 10934), (1988, 9416), (2272, 8239), (2354, 7952), (2464, 7597), (2996, 6248), (3124, 5992), (3424, 5467), (3976, 4708)]