81656001

素因数分解:

$3^2\times 7^2\times {\mathrm{185161}}^1$

素因数の和:185181

約数の個数: 18

約数和(自身を含む): 137205042

約数和(自身を除く): 55549041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 185161, 555483, 1296127, 1666449, 3888381, 9072889, 11665143, 27218667, 81656001]

約数ペア:

[(1, 81656001), (3, 27218667), (7, 11665143), (9, 9072889), (21, 3888381), (49, 1666449), (63, 1296127), (147, 555483), (441, 185161)]