19866707

素因数分解:

$7^2\times {\mathrm{317}}^1\times {\mathrm{1279}}^1$

素因数の和:1610

約数の個数: 12

約数和(自身を含む): 23201280

約数和(自身を除く): 3334573

約数列:

[1, 7, 49, 317, 1279, 2219, 8953, 15533, 62671, 405443, 2838101, 19866707]

約数ペア:

[(1, 19866707), (7, 2838101), (49, 405443), (317, 62671), (1279, 15533), (2219, 8953)]