28904463

素因数分解:

$3^2\times 7^2\times {\mathrm{65543}}^1$

素因数の和:65563

約数の個数: 18

約数和(自身を含む): 48568104

約数和(自身を除く): 19663641

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 65543, 196629, 458801, 589887, 1376403, 3211607, 4129209, 9634821, 28904463]

約数ペア:

[(1, 28904463), (3, 9634821), (7, 4129209), (9, 3211607), (21, 1376403), (49, 589887), (63, 458801), (147, 196629), (441, 65543)]