21897681

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{277}}^1\times {\mathrm{2027}}^1$

素因数の和:2320

約数の個数: 16

約数和(自身を含む): 31571904

約数和(自身を除く): 9674223

約数列:

[1, 3, 13, 39, 277, 831, 2027, 3601, 6081, 10803, 26351, 79053, 561479, 1684437, 7299227, 21897681]

約数ペア:

[(1, 21897681), (3, 7299227), (13, 1684437), (39, 561479), (277, 79053), (831, 26351), (2027, 10803), (3601, 6081)]