20455293

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{239}}^1\times {\mathrm{607}}^1$

素因数の和:896

約数の個数: 16

約数和(自身を含む): 28016640

約数和(自身を除く): 7561347

約数列:

[1, 3, 47, 141, 239, 607, 717, 1821, 11233, 28529, 33699, 85587, 145073, 435219, 6818431, 20455293]

約数ペア:

[(1, 20455293), (3, 6818431), (47, 435219), (141, 145073), (239, 85587), (607, 33699), (717, 28529), (1821, 11233)]