20899681467

素因数分解:

$3^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{7836401}}^1$

素因数の和:7836538

約数の個数: 16

約数和(自身を含む): 32097902592

約数和(自身を除く): 11198221125

約数列:

[1, 3, 7, 21, 127, 381, 889, 2667, 7836401, 23509203, 54854807, 164564421, 995222927, 2985668781, 6966560489, 20899681467]

約数ペア:

[(1, 20899681467), (3, 6966560489), (7, 2985668781), (21, 995222927), (127, 164564421), (381, 54854807), (889, 23509203), (2667, 7836401)]