51671721

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{197}}^1$

素因数の和:393

約数の個数: 32

約数和(自身を含む): 75841920

約数和(自身を除く): 24170199

約数列:

[1, 3, 17, 37, 51, 111, 139, 197, 417, 591, 629, 1887, 2363, 3349, 5143, 7089, 7289, 10047, 15429, 21867, 27383, 82149, 87431, 123913, 262293, 371739, 465511, 1013171, 1396533, 3039513, 17223907, 51671721]

約数ペア:

[(1, 51671721), (3, 17223907), (17, 3039513), (37, 1396533), (51, 1013171), (111, 465511), (139, 371739), (197, 262293), (417, 123913), (591, 87431), (629, 82149), (1887, 27383), (2363, 21867), (3349, 15429), (5143, 10047), (7089, 7289)]