39928889

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{353}}^1$

素因数の和:497

約数の個数: 32

約数和(自身を含む): 54238464

約数和(自身を除く): 14309575

約数列:

[1, 7, 11, 13, 77, 91, 113, 143, 353, 791, 1001, 1243, 1469, 2471, 3883, 4589, 8701, 10283, 16159, 27181, 32123, 39889, 50479, 113113, 279223, 353353, 438779, 518557, 3071453, 3629899, 5704127, 39928889]

約数ペア:

[(1, 39928889), (7, 5704127), (11, 3629899), (13, 3071453), (77, 518557), (91, 438779), (113, 353353), (143, 279223), (353, 113113), (791, 50479), (1001, 39889), (1243, 32123), (1469, 27181), (2471, 16159), (3883, 10283), (4589, 8701)]