20813527

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{1543}}^1$

素因数の和:1638

約数の個数: 16

約数和(自身を含む): 24901632

約数和(自身を除く): 4088105

約数列:

[1, 7, 41, 47, 287, 329, 1543, 1927, 10801, 13489, 63263, 72521, 442841, 507647, 2973361, 20813527]

約数ペア:

[(1, 20813527), (7, 2973361), (41, 507647), (47, 442841), (287, 72521), (329, 63263), (1543, 13489), (1927, 10801)]