17239817

素因数分解:

$7^2\times {\mathrm{37}}^2\times {\mathrm{257}}^1$

素因数の和:345

約数の個数: 18

約数和(自身を含む): 20691342

約数和(自身を除く): 3451525

約数列:

[1, 7, 37, 49, 257, 259, 1369, 1799, 1813, 9509, 9583, 12593, 66563, 67081, 351833, 465941, 2462831, 17239817]

約数ペア:

[(1, 17239817), (7, 2462831), (37, 465941), (49, 351833), (257, 67081), (259, 66563), (1369, 12593), (1799, 9583), (1813, 9509)]