388639438

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{88771}}^1$

素因数の和:88983

約数の個数: 16

約数和(自身を含む): 639158400

約数和(自身を除く): 250518962

約数列:

[1, 2, 11, 22, 199, 398, 2189, 4378, 88771, 177542, 976481, 1952962, 17665429, 35330858, 194319719, 388639438]

約数ペア:

[(1, 388639438), (2, 194319719), (11, 35330858), (22, 17665429), (199, 1952962), (398, 976481), (2189, 177542), (4378, 88771)]