21593727

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{719}}^1$

素因数の和:843

約数の個数: 24

約数和(自身を含む): 32348160

約数和(自身を除く): 10754433

約数列:

[1, 3, 9, 47, 71, 141, 213, 423, 639, 719, 2157, 3337, 6471, 10011, 30033, 33793, 51049, 101379, 153147, 304137, 459441, 2399303, 7197909, 21593727]

約数ペア:

[(1, 21593727), (3, 7197909), (9, 2399303), (47, 459441), (71, 304137), (141, 153147), (213, 101379), (423, 51049), (639, 33793), (719, 30033), (2157, 10011), (3337, 6471)]