128840103

素因数分解:

$3^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{16103}}^1$

素因数の和:16243

約数の個数: 24

約数和(自身を含む): 214376448

約数和(自身を除く): 85536345

約数列:

[1, 3, 7, 9, 21, 63, 127, 381, 889, 1143, 2667, 8001, 16103, 48309, 112721, 144927, 338163, 1014489, 2045081, 6135243, 14315567, 18405729, 42946701, 128840103]

約数ペア:

[(1, 128840103), (3, 42946701), (7, 18405729), (9, 14315567), (21, 6135243), (63, 2045081), (127, 1014489), (381, 338163), (889, 144927), (1143, 112721), (2667, 48309), (8001, 16103)]