25328919

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{199}}^1$

素因数の和:268

約数の個数: 64

約数和(自身を含む): 46080000

約数和(自身を除く): 20751081

約数列:

[1, 3, 7, 11, 19, 21, 29, 33, 57, 77, 87, 133, 199, 203, 209, 231, 319, 399, 551, 597, 609, 627, 957, 1393, 1463, 1653, 2189, 2233, 3781, 3857, 4179, 4389, 5771, 6061, 6567, 6699, 11343, 11571, 15323, 17313, 18183, 26467, 40397, 41591, 42427, 45969, 63481, 79401, 109649, 121191, 124773, 127281, 190443, 291137, 328947, 444367, 767543, 873411, 1206139, 1333101, 2302629, 3618417, 8442973, 25328919]

約数ペア:

[(1, 25328919), (3, 8442973), (7, 3618417), (11, 2302629), (19, 1333101), (21, 1206139), (29, 873411), (33, 767543), (57, 444367), (77, 328947), (87, 291137), (133, 190443), (199, 127281), (203, 124773), (209, 121191), (231, 109649), (319, 79401), (399, 63481), (551, 45969), (597, 42427), (609, 41591), (627, 40397), (957, 26467), (1393, 18183), (1463, 17313), (1653, 15323), (2189, 11571), (2233, 11343), (3781, 6699), (3857, 6567), (4179, 6061), (4389, 5771)]