21167159

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^2$

素因数の和:191

約数の個数: 24

約数和(自身を含む): 25769520

約数和(自身を除く): 4602361

約数列:

[1, 13, 17, 19, 71, 221, 247, 323, 923, 1207, 1349, 4199, 5041, 15691, 17537, 22933, 65533, 85697, 95779, 298129, 1114061, 1245127, 1628243, 21167159]

約数ペア:

[(1, 21167159), (13, 1628243), (17, 1245127), (19, 1114061), (71, 298129), (221, 95779), (247, 85697), (323, 65533), (923, 22933), (1207, 17537), (1349, 15691), (4199, 5041)]