21282568

素因数分解:

$2^3\times {\mathrm{139}}^1\times {\mathrm{19139}}^1$

素因数の和:19284

約数の個数: 16

約数和(自身を含む): 40194000

約数和(自身を除く): 18911432

約数列:

[1, 2, 4, 8, 139, 278, 556, 1112, 19139, 38278, 76556, 153112, 2660321, 5320642, 10641284, 21282568]

約数ペア:

[(1, 21282568), (2, 10641284), (4, 5320642), (8, 2660321), (139, 153112), (278, 76556), (556, 38278), (1112, 19139)]