18989936

素因数分解:

$2^4\times 7^1\times {\mathrm{169553}}^1$

素因数の和:169568

約数の個数: 20

約数和(自身を含む): 42049392

約数和(自身を除く): 23059456

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 169553, 339106, 678212, 1186871, 1356424, 2373742, 2712848, 4747484, 9494968, 18989936]

約数ペア:

[(1, 18989936), (2, 9494968), (4, 4747484), (7, 2712848), (8, 2373742), (14, 1356424), (16, 1186871), (28, 678212), (56, 339106), (112, 169553)]