19871356

素因数分解:

$2^2\times {\mathrm{23}}^2\times {\mathrm{9391}}^1$

素因数の和:9441

約数の個数: 18

約数和(自身を含む): 36356432

約数和(自身を除く): 16485076

約数列:

[1, 2, 4, 23, 46, 92, 529, 1058, 2116, 9391, 18782, 37564, 215993, 431986, 863972, 4967839, 9935678, 19871356]

約数ペア:

[(1, 19871356), (2, 9935678), (4, 4967839), (23, 863972), (46, 431986), (92, 215993), (529, 37564), (1058, 18782), (2116, 9391)]