18661563

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{373}}^1$

素因数の和:508

約数の個数: 32

約数和(自身を含む): 29620800

約数和(自身を除く): 10959237

約数列:

[1, 3, 9, 17, 27, 51, 109, 153, 327, 373, 459, 981, 1119, 1853, 2943, 3357, 5559, 6341, 10071, 16677, 19023, 40657, 50031, 57069, 121971, 171207, 365913, 691169, 1097739, 2073507, 6220521, 18661563]

約数ペア:

[(1, 18661563), (3, 6220521), (9, 2073507), (17, 1097739), (27, 691169), (51, 365913), (109, 171207), (153, 121971), (327, 57069), (373, 50031), (459, 40657), (981, 19023), (1119, 16677), (1853, 10071), (2943, 6341), (3357, 5559)]