16978913

素因数分解:

$7^1\times {\mathrm{19}}^2\times {\mathrm{6719}}^1$

素因数の和:6764

約数の個数: 12

約数和(自身を含む): 20482560

約数和(自身を除く): 3503647

約数列:

[1, 7, 19, 133, 361, 2527, 6719, 47033, 127661, 893627, 2425559, 16978913]

約数ペア:

[(1, 16978913), (7, 2425559), (19, 893627), (133, 127661), (361, 47033), (2527, 6719)]