1997647551

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{76249}}^1$

素因数の和:76367

約数の個数: 24

約数和(自身を含む): 2997540000

約数和(自身を除く): 999892449

約数列:

[1, 3, 9, 41, 71, 123, 213, 369, 639, 2911, 8733, 26199, 76249, 228747, 686241, 3126209, 5413679, 9378627, 16241037, 28135881, 48723111, 221960839, 665882517, 1997647551]

約数ペア:

[(1, 1997647551), (3, 665882517), (9, 221960839), (41, 48723111), (71, 28135881), (123, 16241037), (213, 9378627), (369, 5413679), (639, 3126209), (2911, 686241), (8733, 228747), (26199, 76249)]