18028479

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{20939}}^1$

素因数の和:20990

約数の個数: 16

約数和(自身を含む): 28143360

約数和(自身を除く): 10114881

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 20939, 62817, 146573, 439719, 858499, 2575497, 6009493, 18028479]

約数ペア:

[(1, 18028479), (3, 6009493), (7, 2575497), (21, 858499), (41, 439719), (123, 146573), (287, 62817), (861, 20939)]