20321690

素因数分解:

$2^1\times 5^1\times {\mathrm{1069}}^1\times {\mathrm{1901}}^1$

素因数の和:2977

約数の個数: 16

約数和(自身を含む): 36632520

約数和(自身を除く): 16310830

約数列:

[1, 2, 5, 10, 1069, 1901, 2138, 3802, 5345, 9505, 10690, 19010, 2032169, 4064338, 10160845, 20321690]

約数ペア:

[(1, 20321690), (2, 10160845), (5, 4064338), (10, 2032169), (1069, 19010), (1901, 10690), (2138, 9505), (3802, 5345)]