12721851

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{463}}^1$

素因数の和:583

約数の個数: 24

約数和(自身を含む): 19109376

約数和(自身を除く): 6387525

約数列:

[1, 3, 9, 43, 71, 129, 213, 387, 463, 639, 1389, 3053, 4167, 9159, 19909, 27477, 32873, 59727, 98619, 179181, 295857, 1413539, 4240617, 12721851]

約数ペア:

[(1, 12721851), (3, 4240617), (9, 1413539), (43, 295857), (71, 179181), (129, 98619), (213, 59727), (387, 32873), (463, 27477), (639, 19909), (1389, 9159), (3053, 4167)]