20927739

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{18803}}^1$

素因数の和:18866

約数の個数: 16

約数和(自身を含む): 32493312

約数和(自身を除く): 11565573

約数列:

[1, 3, 7, 21, 53, 159, 371, 1113, 18803, 56409, 131621, 394863, 996559, 2989677, 6975913, 20927739]

約数ペア:

[(1, 20927739), (3, 6975913), (7, 2989677), (21, 996559), (53, 394863), (159, 131621), (371, 56409), (1113, 18803)]