278931239

素因数分解:

${\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1\times {\mathrm{433}}^1$

素因数の和:758

約数の個数: 16

約数和(自身を含む): 291481344

約数和(自身を除く): 12550105

約数列:

[1, 43, 71, 211, 433, 3053, 9073, 14981, 18619, 30743, 91363, 644183, 1321949, 3928609, 6486773, 278931239]

約数ペア:

[(1, 278931239), (43, 6486773), (71, 3928609), (211, 1321949), (433, 644183), (3053, 91363), (9073, 30743), (14981, 18619)]