20888791

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{4049}}^1$

素因数の和:4134

約数の個数: 16

約数和(自身を含む): 26438400

約数和(自身を除く): 5549609

約数列:

[1, 7, 11, 67, 77, 469, 737, 4049, 5159, 28343, 44539, 271283, 311773, 1898981, 2984113, 20888791]

約数ペア:

[(1, 20888791), (7, 2984113), (11, 1898981), (67, 311773), (77, 271283), (469, 44539), (737, 28343), (4049, 5159)]