21289774

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{887}}^1\times {\mathrm{1091}}^1$

素因数の和:1991

約数の個数: 16

約数和(自身を含む): 34909056

約数和(自身を除く): 13619282

約数列:

[1, 2, 11, 22, 887, 1091, 1774, 2182, 9757, 12001, 19514, 24002, 967717, 1935434, 10644887, 21289774]

約数ペア:

[(1, 21289774), (2, 10644887), (11, 1935434), (22, 967717), (887, 24002), (1091, 19514), (1774, 12001), (2182, 9757)]