221011271

素因数分解:

${\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1789}}^1$

素因数の和:1875

約数の個数: 24

約数和(自身を含む): 259435440

約数和(自身を除く): 38424169

約数列:

[1, 13, 17, 43, 169, 221, 559, 731, 1789, 2873, 7267, 9503, 23257, 30413, 76927, 123539, 302341, 395369, 1000051, 1307759, 5139797, 13000663, 17000867, 221011271]

約数ペア:

[(1, 221011271), (13, 17000867), (17, 13000663), (43, 5139797), (169, 1307759), (221, 1000051), (559, 395369), (731, 302341), (1789, 123539), (2873, 76927), (7267, 30413), (9503, 23257)]