51661233

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{691}}^1$

素因数の和:787

約数の個数: 40

約数和(自身を含む): 84401856

約数和(自身を除く): 32740623

約数列:

[1, 3, 9, 13, 27, 39, 71, 81, 117, 213, 351, 639, 691, 923, 1053, 1917, 2073, 2769, 5751, 6219, 8307, 8983, 18657, 24921, 26949, 49061, 55971, 74763, 80847, 147183, 242541, 441549, 637793, 727623, 1324647, 1913379, 3973941, 5740137, 17220411, 51661233]

約数ペア:

[(1, 51661233), (3, 17220411), (9, 5740137), (13, 3973941), (27, 1913379), (39, 1324647), (71, 727623), (81, 637793), (117, 441549), (213, 242541), (351, 147183), (639, 80847), (691, 74763), (923, 55971), (1053, 49061), (1917, 26949), (2073, 24921), (2769, 18657), (5751, 8983), (6219, 8307)]