19922287

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{547}}^1$

素因数の和:619

約数の個数: 24

約数和(自身を含む): 25655168

約数和(自身を除く): 5732881

約数列:

[1, 7, 11, 43, 77, 121, 301, 473, 547, 847, 3311, 3829, 5203, 6017, 23521, 36421, 42119, 66187, 164647, 258731, 463309, 1811117, 2846041, 19922287]

約数ペア:

[(1, 19922287), (7, 2846041), (11, 1811117), (43, 463309), (77, 258731), (121, 164647), (301, 66187), (473, 42119), (547, 36421), (847, 23521), (3311, 6017), (3829, 5203)]