18719456

素因数分解:

$2^5\times 7^1\times {\mathrm{193}}^1\times {\mathrm{433}}^1$

素因数の和:643

約数の個数: 48

約数和(自身を含む): 42434784

約数和(自身を除く): 23715328

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 193, 224, 386, 433, 772, 866, 1351, 1544, 1732, 2702, 3031, 3088, 3464, 5404, 6062, 6176, 6928, 10808, 12124, 13856, 21616, 24248, 43232, 48496, 83569, 96992, 167138, 334276, 584983, 668552, 1169966, 1337104, 2339932, 2674208, 4679864, 9359728, 18719456]

約数ペア:

[(1, 18719456), (2, 9359728), (4, 4679864), (7, 2674208), (8, 2339932), (14, 1337104), (16, 1169966), (28, 668552), (32, 584983), (56, 334276), (112, 167138), (193, 96992), (224, 83569), (386, 48496), (433, 43232), (772, 24248), (866, 21616), (1351, 13856), (1544, 12124), (1732, 10808), (2702, 6928), (3031, 6176), (3088, 6062), (3464, 5404)]