21355167

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1\times {\mathrm{937}}^1$

素因数の和:1118

約数の個数: 16

約数和(自身を含む): 29175552

約数和(自身を除く): 7820385

約数列:

[1, 3, 71, 107, 213, 321, 937, 2811, 7597, 22791, 66527, 100259, 199581, 300777, 7118389, 21355167]

約数ペア:

[(1, 21355167), (3, 7118389), (71, 300777), (107, 199581), (213, 100259), (321, 66527), (937, 22791), (2811, 7597)]