19960017

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1217}}^1$

素因数の和:1309

約数の個数: 32

約数和(自身を含む): 33675264

約数和(自身を除く): 13715247

約数列:

[1, 3, 7, 11, 21, 33, 71, 77, 213, 231, 497, 781, 1217, 1491, 2343, 3651, 5467, 8519, 13387, 16401, 25557, 40161, 86407, 93709, 259221, 281127, 604849, 950477, 1814547, 2851431, 6653339, 19960017]

約数ペア:

[(1, 19960017), (3, 6653339), (7, 2851431), (11, 1814547), (21, 950477), (33, 604849), (71, 281127), (77, 259221), (213, 93709), (231, 86407), (497, 40161), (781, 25557), (1217, 16401), (1491, 13387), (2343, 8519), (3651, 5467)]