19952217

素因数分解:

$3^3\times {\mathrm{131}}^1\times {\mathrm{5641}}^1$

素因数の和:5781

約数の個数: 16

約数和(自身を含む): 29789760

約数和(自身を除く): 9837543

約数列:

[1, 3, 9, 27, 131, 393, 1179, 3537, 5641, 16923, 50769, 152307, 738971, 2216913, 6650739, 19952217]

約数ペア:

[(1, 19952217), (3, 6650739), (9, 2216913), (27, 738971), (131, 152307), (393, 50769), (1179, 16923), (3537, 5641)]