19963922

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{12781}}^1$

素因数の和:12865

約数の個数: 16

約数和(自身を含む): 33130944

約数和(自身を除く): 13167022

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 12781, 25562, 140591, 281182, 907451, 1814902, 9981961, 19963922]

約数ペア:

[(1, 19963922), (2, 9981961), (11, 1814902), (22, 907451), (71, 281182), (142, 140591), (781, 25562), (1562, 12781)]