21169918

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{12497}}^1$

素因数の和:12528

約数の個数: 24

約数和(自身を含む): 39893616

約数和(自身を除く): 18723698

約数列:

[1, 2, 7, 11, 14, 22, 77, 121, 154, 242, 847, 1694, 12497, 24994, 87479, 137467, 174958, 274934, 962269, 1512137, 1924538, 3024274, 10584959, 21169918]

約数ペア:

[(1, 21169918), (2, 10584959), (7, 3024274), (11, 1924538), (14, 1512137), (22, 962269), (77, 274934), (121, 174958), (154, 137467), (242, 87479), (847, 24994), (1694, 12497)]