20939576

素因数分解:

$2^3\times 7^1\times {\mathrm{199}}^1\times {\mathrm{1879}}^1$

素因数の和:2091

約数の個数: 32

約数和(自身を含む): 45120000

約数和(自身を除く): 24180424

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 199, 398, 796, 1393, 1592, 1879, 2786, 3758, 5572, 7516, 11144, 13153, 15032, 26306, 52612, 105224, 373921, 747842, 1495684, 2617447, 2991368, 5234894, 10469788, 20939576]

約数ペア:

[(1, 20939576), (2, 10469788), (4, 5234894), (7, 2991368), (8, 2617447), (14, 1495684), (28, 747842), (56, 373921), (199, 105224), (398, 52612), (796, 26306), (1393, 15032), (1592, 13153), (1879, 11144), (2786, 7516), (3758, 5572)]