180213

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1$

素因数の和:184

約数の個数: 16

約数和(自身を含む): 270336

約数和(自身を除く): 90123

約数列:

[1, 3, 11, 33, 43, 127, 129, 381, 473, 1397, 1419, 4191, 5461, 16383, 60071, 180213]

約数ペア:

[(1, 180213), (3, 60071), (11, 16383), (33, 5461), (43, 4191), (127, 1419), (129, 1397), (381, 473)]