18693423

素因数分解:

$3^4\times 7^1\times {\mathrm{32969}}^1$

素因数の和:32988

約数の個数: 20

約数和(自身を含む): 31914960

約数和(自身を除く): 13221537

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 32969, 98907, 230783, 296721, 692349, 890163, 2077047, 2670489, 6231141, 18693423]

約数ペア:

[(1, 18693423), (3, 6231141), (7, 2670489), (9, 2077047), (21, 890163), (27, 692349), (63, 296721), (81, 230783), (189, 98907), (567, 32969)]