19983992

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^2\times {\mathrm{193}}^1$

素因数の和:292

約数の個数: 48

約数和(自身を含む): 44069040

約数和(自身を除く): 24085048

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 56, 86, 172, 193, 301, 344, 386, 602, 772, 1204, 1351, 1544, 1849, 2408, 2702, 3698, 5404, 7396, 8299, 10808, 12943, 14792, 16598, 25886, 33196, 51772, 58093, 66392, 103544, 116186, 232372, 356857, 464744, 713714, 1427428, 2497999, 2854856, 4995998, 9991996, 19983992]

約数ペア:

[(1, 19983992), (2, 9991996), (4, 4995998), (7, 2854856), (8, 2497999), (14, 1427428), (28, 713714), (43, 464744), (56, 356857), (86, 232372), (172, 116186), (193, 103544), (301, 66392), (344, 58093), (386, 51772), (602, 33196), (772, 25886), (1204, 16598), (1351, 14792), (1544, 12943), (1849, 10808), (2408, 8299), (2702, 7396), (3698, 5404)]