21003807

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{27673}}^1$

素因数の和:27710

約数の個数: 16

約数和(自身を含む): 31880448

約数和(自身を除く): 10876641

約数列:

[1, 3, 11, 23, 33, 69, 253, 759, 27673, 83019, 304403, 636479, 913209, 1909437, 7001269, 21003807]

約数ペア:

[(1, 21003807), (3, 7001269), (11, 1909437), (23, 913209), (33, 636479), (69, 304403), (253, 83019), (759, 27673)]