18919142

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{661}}^1\times {\mathrm{1301}}^1$

素因数の和:1975

約数の個数: 16

約数和(自身を含む): 31029264

約数和(自身を除く): 12110122

約数列:

[1, 2, 11, 22, 661, 1301, 1322, 2602, 7271, 14311, 14542, 28622, 859961, 1719922, 9459571, 18919142]

約数ペア:

[(1, 18919142), (2, 9459571), (11, 1719922), (22, 859961), (661, 28622), (1301, 14542), (1322, 14311), (2602, 7271)]