28725489

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{81839}}^1$

素因数の和:81861

約数の個数: 16

約数和(自身を含む): 45830400

約数和(自身を除く): 17104911

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 81839, 245517, 736551, 1063907, 2209653, 3191721, 9575163, 28725489]

約数ペア:

[(1, 28725489), (3, 9575163), (9, 3191721), (13, 2209653), (27, 1063907), (39, 736551), (117, 245517), (351, 81839)]