20814655

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{3851}}^1$

素因数の和:3926

約数の個数: 16

約数和(自身を含む): 26625024

約数和(自身を除く): 5810369

約数列:

[1, 5, 23, 47, 115, 235, 1081, 3851, 5405, 19255, 88573, 180997, 442865, 904985, 4162931, 20814655]

約数ペア:

[(1, 20814655), (5, 4162931), (23, 904985), (47, 442865), (115, 180997), (235, 88573), (1081, 19255), (3851, 5405)]