20498319

素因数分解:

$3^3\times {\mathrm{41}}^1\times {\mathrm{18517}}^1$

素因数の和:18567

約数の個数: 16

約数和(自身を含む): 31110240

約数和(自身を除く): 10611921

約数列:

[1, 3, 9, 27, 41, 123, 369, 1107, 18517, 55551, 166653, 499959, 759197, 2277591, 6832773, 20498319]

約数ペア:

[(1, 20498319), (3, 6832773), (9, 2277591), (27, 759197), (41, 499959), (123, 166653), (369, 55551), (1107, 18517)]