20933143

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{547}}^1$

素因数の和:643

約数の個数: 24

約数和(自身を含む): 26987904

約数和(自身を除く): 6054761

約数列:

[1, 7, 11, 49, 71, 77, 497, 539, 547, 781, 3479, 3829, 5467, 6017, 26803, 38269, 38837, 42119, 271859, 294833, 427207, 1903013, 2990449, 20933143]

約数ペア:

[(1, 20933143), (7, 2990449), (11, 1903013), (49, 427207), (71, 294833), (77, 271859), (497, 42119), (539, 38837), (547, 38269), (781, 26803), (3479, 6017), (3829, 5467)]