2809257

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:205

約数の個数: 24

約数和(自身を含む): 4213440

約数和(自身を除く): 1404183

約数列:

[1, 3, 11, 33, 71, 109, 121, 213, 327, 363, 781, 1199, 2343, 3597, 7739, 8591, 13189, 23217, 25773, 39567, 85129, 255387, 936419, 2809257]

約数ペア:

[(1, 2809257), (3, 936419), (11, 255387), (33, 85129), (71, 39567), (109, 25773), (121, 23217), (213, 13189), (327, 8591), (363, 7739), (781, 3597), (1199, 2343)]