20799996

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{1283}}^1$

素因数の和:1490

約数の個数: 48

約数和(自身を含む): 55797504

約数和(自身を除く): 34997508

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 193, 386, 579, 772, 1158, 1283, 1351, 2316, 2566, 2702, 3849, 4053, 5132, 5404, 7698, 8106, 8981, 15396, 16212, 17962, 26943, 35924, 53886, 107772, 247619, 495238, 742857, 990476, 1485714, 1733333, 2971428, 3466666, 5199999, 6933332, 10399998, 20799996]

約数ペア:

[(1, 20799996), (2, 10399998), (3, 6933332), (4, 5199999), (6, 3466666), (7, 2971428), (12, 1733333), (14, 1485714), (21, 990476), (28, 742857), (42, 495238), (84, 247619), (193, 107772), (386, 53886), (579, 35924), (772, 26943), (1158, 17962), (1283, 16212), (1351, 15396), (2316, 8981), (2566, 8106), (2702, 7698), (3849, 5404), (4053, 5132)]