20899953

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{136601}}^1$

素因数の和:136624

約数の個数: 12

約数和(自身を含む): 31964868

約数和(自身を除く): 11064915

約数列:

[1, 3, 9, 17, 51, 153, 136601, 409803, 1229409, 2322217, 6966651, 20899953]

約数ペア:

[(1, 20899953), (3, 6966651), (9, 2322217), (17, 1229409), (51, 409803), (153, 136601)]