18721906

素因数分解:

$2^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{4759}}^1$

素因数の和:5049

約数の個数: 16

約数和(自身を含む): 32215680

約数和(自身を除く): 13493774

約数列:

[1, 2, 7, 14, 281, 562, 1967, 3934, 4759, 9518, 33313, 66626, 1337279, 2674558, 9360953, 18721906]

約数ペア:

[(1, 18721906), (2, 9360953), (7, 2674558), (14, 1337279), (281, 66626), (562, 33313), (1967, 9518), (3934, 4759)]