30957278

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{19819}}^1$

素因数の和:19903

約数の個数: 16

約数和(自身を含む): 51373440

約数和(自身を除く): 20416162

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 19819, 39638, 218009, 436018, 1407149, 2814298, 15478639, 30957278]

約数ペア:

[(1, 30957278), (2, 15478639), (11, 2814298), (22, 1407149), (71, 436018), (142, 218009), (781, 39638), (1562, 19819)]