56785281

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{142319}}^1$

素因数の和:142348

約数の個数: 16

約数和(自身を含む): 91084800

約数和(自身を除く): 34299519

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 142319, 426957, 996233, 2704061, 2988699, 8112183, 18928427, 56785281]

約数ペア:

[(1, 56785281), (3, 18928427), (7, 8112183), (19, 2988699), (21, 2704061), (57, 996233), (133, 426957), (399, 142319)]