51221331

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{26227}}^1$

素因数の和:26271

約数の個数: 24

約数和(自身を含む): 87286784

約数和(自身を除く): 36065453

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953, 26227, 78681, 183589, 236043, 550767, 813037, 1652301, 2439111, 5691259, 7317333, 17073777, 51221331]

約数ペア:

[(1, 51221331), (3, 17073777), (7, 7317333), (9, 5691259), (21, 2439111), (31, 1652301), (63, 813037), (93, 550767), (217, 236043), (279, 183589), (651, 78681), (1953, 26227)]