19794448

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{28771}}^1$

素因数の和:28822

約数の個数: 20

約数和(自身を含む): 39245008

約数和(自身を除く): 19450560

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 28771, 57542, 115084, 230168, 460336, 1237153, 2474306, 4948612, 9897224, 19794448]

約数ペア:

[(1, 19794448), (2, 9897224), (4, 4948612), (8, 2474306), (16, 1237153), (43, 460336), (86, 230168), (172, 115084), (344, 57542), (688, 28771)]