2187609985

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{199873}}^1$

素因数の和:200088

約数の個数: 16

約数和(自身を含む): 2878185600

約数和(自身を除く): 690575615

約数列:

[1, 5, 11, 55, 199, 995, 2189, 10945, 199873, 999365, 2198603, 10993015, 39774727, 198873635, 437521997, 2187609985]

約数ペア:

[(1, 2187609985), (5, 437521997), (11, 198873635), (55, 39774727), (199, 10993015), (995, 2198603), (2189, 999365), (10945, 199873)]