21456512

素因数分解:

$2^7\times 7^2\times {\mathrm{11}}^1\times {\mathrm{311}}^1$

素因数の和:350

約数の個数: 96

約数和(自身を含む): 54419040

約数和(自身を除く): 32962528

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 49, 56, 64, 77, 88, 98, 112, 128, 154, 176, 196, 224, 308, 311, 352, 392, 448, 539, 616, 622, 704, 784, 896, 1078, 1232, 1244, 1408, 1568, 2156, 2177, 2464, 2488, 3136, 3421, 4312, 4354, 4928, 4976, 6272, 6842, 8624, 8708, 9856, 9952, 13684, 15239, 17248, 17416, 19904, 23947, 27368, 30478, 34496, 34832, 39808, 47894, 54736, 60956, 68992, 69664, 95788, 109472, 121912, 139328, 167629, 191576, 218944, 243824, 278656, 335258, 383152, 437888, 487648, 670516, 766304, 975296, 1341032, 1532608, 1950592, 2682064, 3065216, 5364128, 10728256, 21456512]

約数ペア:

[(1, 21456512), (2, 10728256), (4, 5364128), (7, 3065216), (8, 2682064), (11, 1950592), (14, 1532608), (16, 1341032), (22, 975296), (28, 766304), (32, 670516), (44, 487648), (49, 437888), (56, 383152), (64, 335258), (77, 278656), (88, 243824), (98, 218944), (112, 191576), (128, 167629), (154, 139328), (176, 121912), (196, 109472), (224, 95788), (308, 69664), (311, 68992), (352, 60956), (392, 54736), (448, 47894), (539, 39808), (616, 34832), (622, 34496), (704, 30478), (784, 27368), (896, 23947), (1078, 19904), (1232, 17416), (1244, 17248), (1408, 15239), (1568, 13684), (2156, 9952), (2177, 9856), (2464, 8708), (2488, 8624), (3136, 6842), (3421, 6272), (4312, 4976), (4354, 4928)]