20685039

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{61}}^2\times {\mathrm{109}}^1$

素因数の和:251

約数の個数: 24

約数和(自身を含む): 29961360

約数和(自身を除く): 9276321

約数列:

[1, 3, 17, 51, 61, 109, 183, 327, 1037, 1853, 3111, 3721, 5559, 6649, 11163, 19947, 63257, 113033, 189771, 339099, 405589, 1216767, 6895013, 20685039]

約数ペア:

[(1, 20685039), (3, 6895013), (17, 1216767), (51, 405589), (61, 339099), (109, 189771), (183, 113033), (327, 63257), (1037, 19947), (1853, 11163), (3111, 6649), (3721, 5559)]