278857239

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{331}}^1\times {\mathrm{16519}}^1$

素因数の和:16870

約数の個数: 16

約数和(自身を含む): 394894080

約数和(自身を除く): 116036841

約数列:

[1, 3, 17, 51, 331, 993, 5627, 16519, 16881, 49557, 280823, 842469, 5467789, 16403367, 92952413, 278857239]

約数ペア:

[(1, 278857239), (3, 92952413), (17, 16403367), (51, 5467789), (331, 842469), (993, 280823), (5627, 49557), (16519, 16881)]