21001101

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{5011}}^1$

素因数の和:5152

約数の個数: 16

約数和(自身を含む): 30793728

約数和(自身を除く): 9792627

約数列:

[1, 3, 11, 33, 127, 381, 1397, 4191, 5011, 15033, 55121, 165363, 636397, 1909191, 7000367, 21001101]

約数ペア:

[(1, 21001101), (3, 7000367), (11, 1909191), (33, 636397), (127, 165363), (381, 55121), (1397, 15033), (4191, 5011)]