81708879

素因数分解:

$3^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{30637}}^1$

素因数の和:30774

約数の個数: 16

約数和(自身を含む): 125493248

約数和(自身を除く): 43784369

約数列:

[1, 3, 7, 21, 127, 381, 889, 2667, 30637, 91911, 214459, 643377, 3890899, 11672697, 27236293, 81708879]

約数ペア:

[(1, 81708879), (3, 27236293), (7, 11672697), (21, 3890899), (127, 643377), (381, 214459), (889, 91911), (2667, 30637)]