2017665991

素因数分解:

${\mathrm{11}}^1\times {\mathrm{101}}^2\times {\mathrm{17981}}^1$

素因数の和:18194

約数の個数: 12

約数和(自身を含む): 2223222552

約数和(自身を除く): 205556561

約数列:

[1, 11, 101, 1111, 10201, 17981, 112211, 197791, 1816081, 19976891, 183424181, 2017665991]

約数ペア:

[(1, 2017665991), (11, 183424181), (101, 19976891), (1111, 1816081), (10201, 197791), (17981, 112211)]