27840915

素因数分解:

$3^4\times 5^1\times {\mathrm{68743}}^1$

素因数の和:68760

約数の個数: 20

約数和(自身を含む): 49908144

約数和(自身を除く): 22067229

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 68743, 206229, 343715, 618687, 1031145, 1856061, 3093435, 5568183, 9280305, 27840915]

約数ペア:

[(1, 27840915), (3, 9280305), (5, 5568183), (9, 3093435), (15, 1856061), (27, 1031145), (45, 618687), (81, 343715), (135, 206229), (405, 68743)]