19947284

素因数分解:

$2^2\times 7^1\times {\mathrm{557}}^1\times {\mathrm{1279}}^1$

素因数の和:1847

約数の個数: 24

約数和(自身を含む): 39997440

約数和(自身を除く): 20050156

約数列:

[1, 2, 4, 7, 14, 28, 557, 1114, 1279, 2228, 2558, 3899, 5116, 7798, 8953, 15596, 17906, 35812, 712403, 1424806, 2849612, 4986821, 9973642, 19947284]

約数ペア:

[(1, 19947284), (2, 9973642), (4, 4986821), (7, 2849612), (14, 1424806), (28, 712403), (557, 35812), (1114, 17906), (1279, 15596), (2228, 8953), (2558, 7798), (3899, 5116)]