18974131

素因数分解:

${\mathrm{11}}^2\times {\mathrm{191}}^1\times {\mathrm{821}}^1$

素因数の和:1034

約数の個数: 12

約数和(自身を含む): 20990592

約数和(自身を除く): 2016461

約数列:

[1, 11, 121, 191, 821, 2101, 9031, 23111, 99341, 156811, 1724921, 18974131]

約数ペア:

[(1, 18974131), (11, 1724921), (121, 156811), (191, 99341), (821, 23111), (2101, 9031)]