21151330211

素因数分解:

${\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{991}}^1\times {\mathrm{19211}}^1$

素因数の和:20314

約数の個数: 16

約数和(自身を含む): 23327364096

約数和(自身を除く): 2176033885

約数列:

[1, 11, 101, 991, 1111, 10901, 19211, 100091, 211321, 1101001, 1940311, 19038101, 21343421, 209419111, 1922848201, 21151330211]

約数ペア:

[(1, 21151330211), (11, 1922848201), (101, 209419111), (991, 21343421), (1111, 19038101), (10901, 1940311), (19211, 1101001), (100091, 211321)]