18216009

素因数分解:

$3^5\times 7^1\times {\mathrm{10709}}^1$

素因数の和:10731

約数の個数: 24

約数和(自身を含む): 31187520

約数和(自身を除く): 12971511

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 1701, 10709, 32127, 74963, 96381, 224889, 289143, 674667, 867429, 2024001, 2602287, 6072003, 18216009]

約数ペア:

[(1, 18216009), (3, 6072003), (7, 2602287), (9, 2024001), (21, 867429), (27, 674667), (63, 289143), (81, 224889), (189, 96381), (243, 74963), (567, 32127), (1701, 10709)]