18804807

素因数分解:

$3^2\times 7^1\times {\mathrm{421}}^1\times {\mathrm{709}}^1$

素因数の和:1143

約数の個数: 24

約数和(自身を含む): 31160480

約数和(自身を除く): 12355673

約数列:

[1, 3, 7, 9, 21, 63, 421, 709, 1263, 2127, 2947, 3789, 4963, 6381, 8841, 14889, 26523, 44667, 298489, 895467, 2089423, 2686401, 6268269, 18804807]

約数ペア:

[(1, 18804807), (3, 6268269), (7, 2686401), (9, 2089423), (21, 895467), (63, 298489), (421, 44667), (709, 26523), (1263, 14889), (2127, 8841), (2947, 6381), (3789, 4963)]