221558727

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{277}}^1\times {\mathrm{20509}}^1$

素因数の和:20802

約数の個数: 16

約数和(自身を含む): 319299680

約数和(自身を除く): 97740953

約数列:

[1, 3, 13, 39, 277, 831, 3601, 10803, 20509, 61527, 266617, 799851, 5680993, 17042979, 73852909, 221558727]

約数ペア:

[(1, 221558727), (3, 73852909), (13, 17042979), (39, 5680993), (277, 799851), (831, 266617), (3601, 61527), (10803, 20509)]