18810385

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{4817}}^1$

素因数の和:4904

約数の個数: 16

約数和(自身を含む): 24976512

約数和(自身を除く): 6166127

約数列:

[1, 5, 11, 55, 71, 355, 781, 3905, 4817, 24085, 52987, 264935, 342007, 1710035, 3762077, 18810385]

約数ペア:

[(1, 18810385), (5, 3762077), (11, 1710035), (55, 342007), (71, 264935), (355, 52987), (781, 24085), (3905, 4817)]