20886908

素因数分解:

$2^2\times 7^1\times {\mathrm{277}}^1\times {\mathrm{2693}}^1$

素因数の和:2981

約数の個数: 24

約数和(自身を含む): 41940192

約数和(自身を除く): 21053284

約数列:

[1, 2, 4, 7, 14, 28, 277, 554, 1108, 1939, 2693, 3878, 5386, 7756, 10772, 18851, 37702, 75404, 745961, 1491922, 2983844, 5221727, 10443454, 20886908]

約数ペア:

[(1, 20886908), (2, 10443454), (4, 5221727), (7, 2983844), (14, 1491922), (28, 745961), (277, 75404), (554, 37702), (1108, 18851), (1939, 10772), (2693, 7756), (3878, 5386)]