42557739

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{106661}}^1$

素因数の和:106690

約数の個数: 16

約数和(自身を含む): 68263680

約数和(自身を除く): 25705941

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 106661, 319983, 746627, 2026559, 2239881, 6079677, 14185913, 42557739]

約数ペア:

[(1, 42557739), (3, 14185913), (7, 6079677), (19, 2239881), (21, 2026559), (57, 746627), (133, 319983), (399, 106661)]