17680563

素因数分解:

$3^2\times {\mathrm{67}}^1\times {\mathrm{109}}^1\times {\mathrm{269}}^1$

素因数の和:451

約数の個数: 24

約数和(自身を含む): 26254800

約数和(自身を除く): 8574237

約数列:

[1, 3, 9, 67, 109, 201, 269, 327, 603, 807, 981, 2421, 7303, 18023, 21909, 29321, 54069, 65727, 87963, 162207, 263889, 1964507, 5893521, 17680563]

約数ペア:

[(1, 17680563), (3, 5893521), (9, 1964507), (67, 263889), (109, 162207), (201, 87963), (269, 65727), (327, 54069), (603, 29321), (807, 21909), (981, 18023), (2421, 7303)]