858761109

素因数分解:

$3^4\times {\mathrm{251}}^1\times {\mathrm{42239}}^1$

素因数の和:42502

約数の個数: 20

約数和(自身を含む): 1287982080

約数和(自身を除く): 429220971

約数列:

[1, 3, 9, 27, 81, 251, 753, 2259, 6777, 20331, 42239, 126717, 380151, 1140453, 3421359, 10601989, 31805967, 95417901, 286253703, 858761109]

約数ペア:

[(1, 858761109), (3, 286253703), (9, 95417901), (27, 31805967), (81, 10601989), (251, 3421359), (753, 1140453), (2259, 380151), (6777, 126717), (20331, 42239)]