20690199

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{1193}}^1$

素因数の和:1287

約数の個数: 24

約数和(自身を含む): 31292352

約数和(自身を除く): 10602153

約数列:

[1, 3, 9, 41, 47, 123, 141, 369, 423, 1193, 1927, 3579, 5781, 10737, 17343, 48913, 56071, 146739, 168213, 440217, 504639, 2298911, 6896733, 20690199]

約数ペア:

[(1, 20690199), (3, 6896733), (9, 2298911), (41, 504639), (47, 440217), (123, 168213), (141, 146739), (369, 56071), (423, 48913), (1193, 17343), (1927, 10737), (3579, 5781)]