18878054

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{10837}}^1$

素因数の和:10919

約数の個数: 16

約数和(自身を含む): 30953328

約数和(自身を除く): 12075274

約数列:

[1, 2, 13, 26, 67, 134, 871, 1742, 10837, 21674, 140881, 281762, 726079, 1452158, 9439027, 18878054]

約数ペア:

[(1, 18878054), (2, 9439027), (13, 1452158), (26, 726079), (67, 281762), (134, 140881), (871, 21674), (1742, 10837)]