9911231

素因数分解:

${\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{811}}^1$

素因数の和:934

約数の個数: 12

約数和(自身を含む): 11015592

約数和(自身を除く): 1104361

約数列:

[1, 11, 101, 121, 811, 1111, 8921, 12221, 81911, 98131, 901021, 9911231]

約数ペア:

[(1, 9911231), (11, 901021), (101, 98131), (121, 81911), (811, 12221), (1111, 8921)]