20387966

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{233}}^1\times {\mathrm{653}}^1$

素因数の和:955

約数の個数: 16

約数和(自身を含む): 31219344

約数和(自身を除く): 10831378

約数列:

[1, 2, 67, 134, 233, 466, 653, 1306, 15611, 31222, 43751, 87502, 152149, 304298, 10193983, 20387966]

約数ペア:

[(1, 20387966), (2, 10193983), (67, 304298), (134, 152149), (233, 87502), (466, 43751), (653, 31222), (1306, 15611)]