21486304

素因数分解:

$2^5\times 7^2\times {\mathrm{71}}^1\times {\mathrm{193}}^1$

素因数の和:288

約数の個数: 72

約数和(自身を含む): 50159088

約数和(自身を除く): 28672784

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 71, 98, 112, 142, 193, 196, 224, 284, 386, 392, 497, 568, 772, 784, 994, 1136, 1351, 1544, 1568, 1988, 2272, 2702, 3088, 3479, 3976, 5404, 6176, 6958, 7952, 9457, 10808, 13703, 13916, 15904, 18914, 21616, 27406, 27832, 37828, 43232, 54812, 55664, 75656, 95921, 109624, 111328, 151312, 191842, 219248, 302624, 383684, 438496, 671447, 767368, 1342894, 1534736, 2685788, 3069472, 5371576, 10743152, 21486304]

約数ペア:

[(1, 21486304), (2, 10743152), (4, 5371576), (7, 3069472), (8, 2685788), (14, 1534736), (16, 1342894), (28, 767368), (32, 671447), (49, 438496), (56, 383684), (71, 302624), (98, 219248), (112, 191842), (142, 151312), (193, 111328), (196, 109624), (224, 95921), (284, 75656), (386, 55664), (392, 54812), (497, 43232), (568, 37828), (772, 27832), (784, 27406), (994, 21616), (1136, 18914), (1351, 15904), (1544, 13916), (1568, 13703), (1988, 10808), (2272, 9457), (2702, 7952), (3088, 6958), (3479, 6176), (3976, 5404)]