19956772

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{41233}}^1$

素因数の和:41259

約数の個数: 18

約数和(自身を含む): 38388854

約数和(自身を除く): 18432082

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 41233, 82466, 164932, 453563, 907126, 1814252, 4989193, 9978386, 19956772]

約数ペア:

[(1, 19956772), (2, 9978386), (4, 4989193), (11, 1814252), (22, 907126), (44, 453563), (121, 164932), (242, 82466), (484, 41233)]