20996870488

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{1198999}}^1$

素因数の和:1199215

約数の個数: 32

約数和(自身を含む): 43164000000

約数和(自身を除く): 22167129512

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 199, 398, 796, 1592, 2189, 4378, 8756, 17512, 1198999, 2397998, 4795996, 9591992, 13188989, 26377978, 52755956, 105511912, 238600801, 477201602, 954403204, 1908806408, 2624608811, 5249217622, 10498435244, 20996870488]

約数ペア:

[(1, 20996870488), (2, 10498435244), (4, 5249217622), (8, 2624608811), (11, 1908806408), (22, 954403204), (44, 477201602), (88, 238600801), (199, 105511912), (398, 52755956), (796, 26377978), (1592, 13188989), (2189, 9591992), (4378, 4795996), (8756, 2397998), (17512, 1198999)]