9991996

素因数分解:

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

素因数の和:290

約数の個数: 36

約数和(自身を含む): 20565552

約数和(自身を除く): 10573556

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 193, 301, 386, 602, 772, 1204, 1351, 1849, 2702, 3698, 5404, 7396, 8299, 12943, 16598, 25886, 33196, 51772, 58093, 116186, 232372, 356857, 713714, 1427428, 2497999, 4995998, 9991996]

約数ペア:

[(1, 9991996), (2, 4995998), (4, 2497999), (7, 1427428), (14, 713714), (28, 356857), (43, 232372), (86, 116186), (172, 58093), (193, 51772), (301, 33196), (386, 25886), (602, 16598), (772, 12943), (1204, 8299), (1351, 7396), (1849, 5404), (2702, 3698)]