20489678

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{661}}^1\times {\mathrm{1409}}^1$

素因数の和:2083

約数の個数: 16

約数和(自身を含む): 33603120

約数和(自身を除く): 13113442

約数列:

[1, 2, 11, 22, 661, 1322, 1409, 2818, 7271, 14542, 15499, 30998, 931349, 1862698, 10244839, 20489678]

約数ペア:

[(1, 20489678), (2, 10244839), (11, 1862698), (22, 931349), (661, 30998), (1322, 15499), (1409, 14542), (2818, 7271)]