20874161

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{419}}^1\times {\mathrm{647}}^1$

素因数の和:1084

約数の個数: 16

約数和(自身を含む): 26127360

約数和(自身を除く): 5253199

約数列:

[1, 7, 11, 77, 419, 647, 2933, 4529, 4609, 7117, 32263, 49819, 271093, 1897651, 2982023, 20874161]

約数ペア:

[(1, 20874161), (7, 2982023), (11, 1897651), (77, 271093), (419, 49819), (647, 32263), (2933, 7117), (4529, 4609)]