20887438

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{367}}^1$

素因数の和:592

約数の個数: 32

約数和(自身を含む): 37094400

約数和(自身を除く): 16206962

約数列:

[1, 2, 11, 13, 22, 26, 143, 199, 286, 367, 398, 734, 2189, 2587, 4037, 4378, 4771, 5174, 8074, 9542, 28457, 52481, 56914, 73033, 104962, 146066, 803363, 949429, 1606726, 1898858, 10443719, 20887438]

約数ペア:

[(1, 20887438), (2, 10443719), (11, 1898858), (13, 1606726), (22, 949429), (26, 803363), (143, 146066), (199, 104962), (286, 73033), (367, 56914), (398, 52481), (734, 28457), (2189, 9542), (2587, 8074), (4037, 5174), (4378, 4771)]