27991521

素因数分解:

$3^3\times {\mathrm{107}}^1\times {\mathrm{9689}}^1$

素因数の和:9805

約数の個数: 16

約数和(自身を含む): 41860800

約数和(自身を除く): 13869279

約数列:

[1, 3, 9, 27, 107, 321, 963, 2889, 9689, 29067, 87201, 261603, 1036723, 3110169, 9330507, 27991521]

約数ペア:

[(1, 27991521), (3, 9330507), (9, 3110169), (27, 1036723), (107, 261603), (321, 87201), (963, 29067), (2889, 9689)]