21197407

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{14489}}^1$

素因数の和:14526

約数の個数: 16

約数和(自身を含む): 27820800

約数和(自身を除く): 6623393

約数列:

[1, 7, 11, 19, 77, 133, 209, 1463, 14489, 101423, 159379, 275291, 1115653, 1927037, 3028201, 21197407]

約数ペア:

[(1, 21197407), (7, 3028201), (11, 1927037), (19, 1115653), (77, 275291), (133, 159379), (209, 101423), (1463, 14489)]