19720789

素因数分解:

${\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{173}}^1\times {\mathrm{241}}^1$

素因数の和:468

約数の個数: 16

約数和(自身を含む): 22233024

約数和(自身を除く): 2512235

約数列:

[1, 11, 43, 173, 241, 473, 1903, 2651, 7439, 10363, 41693, 81829, 113993, 458623, 1792799, 19720789]

約数ペア:

[(1, 19720789), (11, 1792799), (43, 458623), (173, 113993), (241, 81829), (473, 41693), (1903, 10363), (2651, 7439)]