320739

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{331}}^1$

素因数の和:370

約数の個数: 16

約数和(自身を含む): 478080

約数和(自身を除く): 157341

約数列:

[1, 3, 17, 19, 51, 57, 323, 331, 969, 993, 5627, 6289, 16881, 18867, 106913, 320739]

約数ペア:

[(1, 320739), (3, 106913), (17, 18867), (19, 16881), (51, 6289), (57, 5627), (323, 993), (331, 969)]