20391657

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47533}}^1$

素因数の和:47560

約数の個数: 16

約数和(自身を含む): 31942848

約数和(自身を除く): 11551191

約数列:

[1, 3, 11, 13, 33, 39, 143, 429, 47533, 142599, 522863, 617929, 1568589, 1853787, 6797219, 20391657]

約数ペア:

[(1, 20391657), (3, 6797219), (11, 1853787), (13, 1568589), (33, 617929), (39, 522863), (143, 142599), (429, 47533)]