19685727

素因数分解:

$3^3\times {\mathrm{109}}^1\times {\mathrm{6689}}^1$

素因数の和:6807

約数の個数: 16

約数和(自身を含む): 29436000

約数和(自身を除く): 9750273

約数列:

[1, 3, 9, 27, 109, 327, 981, 2943, 6689, 20067, 60201, 180603, 729101, 2187303, 6561909, 19685727]

約数ペア:

[(1, 19685727), (3, 6561909), (9, 2187303), (27, 729101), (109, 180603), (327, 60201), (981, 20067), (2943, 6689)]