19887128

素因数分解:

$2^3\times {\mathrm{557}}^1\times {\mathrm{4463}}^1$

素因数の和:5026

約数の個数: 16

約数和(自身を含む): 37363680

約数和(自身を除く): 17476552

約数列:

[1, 2, 4, 8, 557, 1114, 2228, 4456, 4463, 8926, 17852, 35704, 2485891, 4971782, 9943564, 19887128]

約数ペア:

[(1, 19887128), (2, 9943564), (4, 4971782), (8, 2485891), (557, 35704), (1114, 17852), (2228, 8926), (4456, 4463)]