28272739

素因数分解:

${\mathrm{11}}^2\times {\mathrm{41}}^2\times {\mathrm{139}}^1$

素因数の和:243

約数の個数: 18

約数和(自身を含む): 32082260

約数和(自身を除く): 3809521

約数列:

[1, 11, 41, 121, 139, 451, 1529, 1681, 4961, 5699, 16819, 18491, 62689, 203401, 233659, 689579, 2570249, 28272739]

約数ペア:

[(1, 28272739), (11, 2570249), (41, 689579), (121, 233659), (139, 203401), (451, 62689), (1529, 18491), (1681, 16819), (4961, 5699)]