20965270

素因数分解:

$2^1\times 5^1\times {\mathrm{1303}}^1\times {\mathrm{1609}}^1$

素因数の和:2919

約数の個数: 16

約数和(自身を含む): 37789920

約数和(自身を除く): 16824650

約数列:

[1, 2, 5, 10, 1303, 1609, 2606, 3218, 6515, 8045, 13030, 16090, 2096527, 4193054, 10482635, 20965270]

約数ペア:

[(1, 20965270), (2, 10482635), (5, 4193054), (10, 2096527), (1303, 16090), (1609, 13030), (2606, 8045), (3218, 6515)]