668921942

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{104161}}^1$

素因数の和:104208

約数の個数: 24

約数和(自身を含む): 1143698760

約数和(自身を除く): 474776818

約数列:

[1, 2, 13, 19, 26, 38, 169, 247, 338, 494, 3211, 6422, 104161, 208322, 1354093, 1979059, 2708186, 3958118, 17603209, 25727767, 35206418, 51455534, 334460971, 668921942]

約数ペア:

[(1, 668921942), (2, 334460971), (13, 51455534), (19, 35206418), (26, 25727767), (38, 17603209), (169, 3958118), (247, 2708186), (338, 1979059), (494, 1354093), (3211, 208322), (6422, 104161)]