2421881

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{443}}^1$

素因数の和:532

約数の個数: 16

約数和(自身を含む): 3068928

約数和(自身を除く): 647047

約数列:

[1, 7, 11, 71, 77, 443, 497, 781, 3101, 4873, 5467, 31453, 34111, 220171, 345983, 2421881]

約数ペア:

[(1, 2421881), (7, 345983), (11, 220171), (71, 34111), (77, 31453), (443, 5467), (497, 4873), (781, 3101)]