20080291

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{3673}}^1$

素因数の和:3762

約数の個数: 16

約数和(自身を含む): 25394688

約数和(自身を除く): 5314397

約数列:

[1, 7, 11, 71, 77, 497, 781, 3673, 5467, 25711, 40403, 260783, 282821, 1825481, 2868613, 20080291]

約数ペア:

[(1, 20080291), (7, 2868613), (11, 1825481), (71, 282821), (77, 260783), (497, 40403), (781, 25711), (3673, 5467)]