2781141

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1187}}^1$

素因数の和:1272

約数の個数: 16

約数和(自身を含む): 4105728

約数和(自身を除く): 1324587

約数列:

[1, 3, 11, 33, 71, 213, 781, 1187, 2343, 3561, 13057, 39171, 84277, 252831, 927047, 2781141]

約数ペア:

[(1, 2781141), (3, 927047), (11, 252831), (33, 84277), (71, 39171), (213, 13057), (781, 3561), (1187, 2343)]