28307727

素因数分解:

$3^2\times 7^1\times {\mathrm{613}}^1\times {\mathrm{733}}^1$

素因数の和:1359

約数の個数: 24

約数和(自身を含む): 46870304

約数和(自身を除く): 18562577

約数列:

[1, 3, 7, 9, 21, 63, 613, 733, 1839, 2199, 4291, 5131, 5517, 6597, 12873, 15393, 38619, 46179, 449329, 1347987, 3145303, 4043961, 9435909, 28307727]

約数ペア:

[(1, 28307727), (3, 9435909), (7, 4043961), (9, 3145303), (21, 1347987), (63, 449329), (613, 46179), (733, 38619), (1839, 15393), (2199, 12873), (4291, 6597), (5131, 5517)]