19906418

素因数分解:

$2^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{8219}}^1$

素因数の和:8401

約数の個数: 16

約数和(自身を含む): 34326720

約数和(自身を除く): 14420302

約数列:

[1, 2, 7, 14, 173, 346, 1211, 2422, 8219, 16438, 57533, 115066, 1421887, 2843774, 9953209, 19906418]

約数ペア:

[(1, 19906418), (2, 9953209), (7, 2843774), (14, 1421887), (173, 115066), (346, 57533), (1211, 16438), (2422, 8219)]