20889124

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{277}}^1\times {\mathrm{1109}}^1$

素因数の和:1407

約数の個数: 24

約数和(自身を含む): 38881080

約数和(自身を除く): 17991956

約数列:

[1, 2, 4, 17, 34, 68, 277, 554, 1108, 1109, 2218, 4436, 4709, 9418, 18836, 18853, 37706, 75412, 307193, 614386, 1228772, 5222281, 10444562, 20889124]

約数ペア:

[(1, 20889124), (2, 10444562), (4, 5222281), (17, 1228772), (34, 614386), (68, 307193), (277, 75412), (554, 37706), (1108, 18853), (1109, 18836), (2218, 9418), (4436, 4709)]