20520266

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41539}}^1$

素因数の和:41573

約数の個数: 16

約数和(自身を含む): 34893600

約数和(自身を除く): 14373334

約数列:

[1, 2, 13, 19, 26, 38, 247, 494, 41539, 83078, 540007, 789241, 1080014, 1578482, 10260133, 20520266]

約数ペア:

[(1, 20520266), (2, 10260133), (13, 1578482), (19, 1080014), (26, 789241), (38, 540007), (247, 83078), (494, 41539)]