208847991

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{89137}}^1$

素因数の和:89222

約数の個数: 16

約数和(自身を含む): 308060928

約数和(自身を除く): 99212937

約数列:

[1, 3, 11, 33, 71, 213, 781, 2343, 89137, 267411, 980507, 2941521, 6328727, 18986181, 69615997, 208847991]

約数ペア:

[(1, 208847991), (3, 69615997), (11, 18986181), (33, 6328727), (71, 2941521), (213, 980507), (781, 267411), (2343, 89137)]