18874174

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{397}}^1\times {\mathrm{2161}}^1$

素因数の和:2571

約数の個数: 16

約数和(自身を含む): 30977136

約数和(自身を除く): 12102962

約数列:

[1, 2, 11, 22, 397, 794, 2161, 4322, 4367, 8734, 23771, 47542, 857917, 1715834, 9437087, 18874174]

約数ペア:

[(1, 18874174), (2, 9437087), (11, 1715834), (22, 857917), (397, 47542), (794, 23771), (2161, 8734), (4322, 4367)]