20538658

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{77213}}^1$

素因数の和:77241

約数の個数: 16

約数和(自身を含む): 37062720

約数和(自身を除く): 16524062

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 77213, 154426, 540491, 1080982, 1467047, 2934094, 10269329, 20538658]

約数ペア:

[(1, 20538658), (2, 10269329), (7, 2934094), (14, 1467047), (19, 1080982), (38, 540491), (133, 154426), (266, 77213)]