19781778

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{193939}}^1$

素因数の和:193961

約数の個数: 16

約数和(自身を含む): 41891040

約数和(自身を除く): 22109262

約数列:

[1, 2, 3, 6, 17, 34, 51, 102, 193939, 387878, 581817, 1163634, 3296963, 6593926, 9890889, 19781778]

約数ペア:

[(1, 19781778), (2, 9890889), (3, 6593926), (6, 3296963), (17, 1163634), (34, 581817), (51, 387878), (102, 193939)]