19980562

素因数分解:

$2^1\times 7^1\times {\mathrm{887}}^1\times {\mathrm{1609}}^1$

素因数の和:2505

約数の個数: 16

約数和(自身を含む): 34312320

約数和(自身を除く): 14331758

約数列:

[1, 2, 7, 14, 887, 1609, 1774, 3218, 6209, 11263, 12418, 22526, 1427183, 2854366, 9990281, 19980562]

約数ペア:

[(1, 19980562), (2, 9990281), (7, 2854366), (14, 1427183), (887, 22526), (1609, 12418), (1774, 11263), (3218, 6209)]