21172259

素因数分解:

${\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{313}}^1$

素因数の和:526

約数の個数: 16

約数和(自身を含む): 23602752

約数和(自身を除く): 2430493

約数列:

[1, 17, 23, 173, 313, 391, 2941, 3979, 5321, 7199, 54149, 67643, 122383, 920533, 1245427, 21172259]

約数ペア:

[(1, 21172259), (17, 1245427), (23, 920533), (173, 122383), (313, 67643), (391, 54149), (2941, 7199), (3979, 5321)]