18878119

素因数分解:

${\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1\times {\mathrm{181}}^1$

素因数の和:378

約数の個数: 16

約数和(自身を含む): 20913984

約数和(自身を除く): 2035865

約数列:

[1, 13, 71, 113, 181, 923, 1469, 2353, 8023, 12851, 20453, 104299, 167063, 265889, 1452163, 18878119]

約数ペア:

[(1, 18878119), (13, 1452163), (71, 265889), (113, 167063), (181, 104299), (923, 20453), (1469, 12851), (2353, 8023)]