19804442

素因数分解:

$2^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{10177}}^1$

素因数の和:10325

約数の個数: 16

約数和(自身を含む): 34198080

約数和(自身を除く): 14393638

約数列:

[1, 2, 7, 14, 139, 278, 973, 1946, 10177, 20354, 71239, 142478, 1414603, 2829206, 9902221, 19804442]

約数ペア:

[(1, 19804442), (2, 9902221), (7, 2829206), (14, 1414603), (139, 142478), (278, 71239), (973, 20354), (1946, 10177)]