30990421

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{12983}}^1$

素因数の和:13032

約数の個数: 16

約数和(自身を含む): 39886848

約数和(自身を除く): 8896427

約数列:

[1, 7, 11, 31, 77, 217, 341, 2387, 12983, 90881, 142813, 402473, 999691, 2817311, 4427203, 30990421]

約数ペア:

[(1, 30990421), (7, 4427203), (11, 2817311), (31, 999691), (77, 402473), (217, 142813), (341, 90881), (2387, 12983)]