21279393

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{6047}}^1$

素因数の和:6093

約数の個数: 24

約数和(自身を含む): 33965568

約数和(自身を除く): 12686175

約数列:

[1, 3, 9, 17, 23, 51, 69, 153, 207, 391, 1173, 3519, 6047, 18141, 54423, 102799, 139081, 308397, 417243, 925191, 1251729, 2364377, 7093131, 21279393]

約数ペア:

[(1, 21279393), (3, 7093131), (9, 2364377), (17, 1251729), (23, 925191), (51, 417243), (69, 308397), (153, 139081), (207, 102799), (391, 54423), (1173, 18141), (3519, 6047)]