19687293

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{6569}}^1$

素因数の和:6618

約数の個数: 20

約数和(自身を含む): 30208860

約数和(自身を除く): 10521567

約数列:

[1, 3, 9, 27, 37, 81, 111, 333, 999, 2997, 6569, 19707, 59121, 177363, 243053, 532089, 729159, 2187477, 6562431, 19687293]

約数ペア:

[(1, 19687293), (3, 6562431), (9, 2187477), (27, 729159), (37, 532089), (81, 243053), (111, 177363), (333, 59121), (999, 19707), (2997, 6569)]