20788654

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{4463}}^1$

素因数の和:4619

約数の個数: 16

約数和(自身を含む): 33265728

約数和(自身を除く): 12477074

約数列:

[1, 2, 17, 34, 137, 274, 2329, 4463, 4658, 8926, 75871, 151742, 611431, 1222862, 10394327, 20788654]

約数ペア:

[(1, 20788654), (2, 10394327), (17, 1222862), (34, 611431), (137, 151742), (274, 75871), (2329, 8926), (4463, 4658)]