21406858

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{887}}^1\times {\mathrm{1097}}^1$

素因数の和:1997

約数の個数: 16

約数和(自身を含む): 35100864

約数和(自身を除く): 13694006

約数列:

[1, 2, 11, 22, 887, 1097, 1774, 2194, 9757, 12067, 19514, 24134, 973039, 1946078, 10703429, 21406858]

約数ペア:

[(1, 21406858), (2, 10703429), (11, 1946078), (22, 973039), (887, 24134), (1097, 19514), (1774, 12067), (2194, 9757)]