3987081

素因数分解:

$3^2\times 7^2\times {\mathrm{9041}}^1$

素因数の和:9061

約数の個数: 18

約数和(自身を含む): 6700122

約数和(自身を除く): 2713041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 9041, 27123, 63287, 81369, 189861, 443009, 569583, 1329027, 3987081]

約数ペア:

[(1, 3987081), (3, 1329027), (7, 569583), (9, 443009), (21, 189861), (49, 81369), (63, 63287), (147, 27123), (441, 9041)]