28787824

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{138403}}^1$

素因数の和:138424

約数の個数: 20

約数和(自身を含む): 60067336

約数和(自身を除く): 31279512

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 138403, 276806, 553612, 1107224, 1799239, 2214448, 3598478, 7196956, 14393912, 28787824]

約数ペア:

[(1, 28787824), (2, 14393912), (4, 7196956), (8, 3598478), (13, 2214448), (16, 1799239), (26, 1107224), (52, 553612), (104, 276806), (208, 138403)]