19228181

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{503}}^1$

素因数の和:680

約数の個数: 16

約数和(自身を含む): 22708224

約数和(自身を除く): 3480043

約数列:

[1, 7, 43, 127, 301, 503, 889, 3521, 5461, 21629, 38227, 63881, 151403, 447167, 2746883, 19228181]

約数ペア:

[(1, 19228181), (7, 2746883), (43, 447167), (127, 151403), (301, 63881), (503, 38227), (889, 21629), (3521, 5461)]