19993071

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{56003}}^1$

素因数の和:56030

約数の個数: 16

約数和(自身を含む): 32258304

約数和(自身を除く): 12265233

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 56003, 168009, 392021, 952051, 1176063, 2856153, 6664357, 19993071]

約数ペア:

[(1, 19993071), (3, 6664357), (7, 2856153), (17, 1176063), (21, 952051), (51, 392021), (119, 168009), (357, 56003)]