1987331353

素因数分解:

$7^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1103}}^1$

素因数の和:1202

約数の個数: 48

約数和(自身を含む): 2584313856

約数和(自身を除く): 596982503

約数列:

[1, 7, 19, 23, 31, 133, 161, 217, 361, 437, 589, 713, 1103, 2527, 3059, 4123, 4991, 7721, 8303, 11191, 13547, 20957, 25369, 34193, 58121, 78337, 94829, 146699, 177583, 239351, 257393, 398183, 482011, 649667, 786439, 1801751, 2787281, 3374077, 4547669, 5505073, 9158209, 12343673, 14942341, 64107463, 86405711, 104596387, 283904479, 1987331353]

約数ペア:

[(1, 1987331353), (7, 283904479), (19, 104596387), (23, 86405711), (31, 64107463), (133, 14942341), (161, 12343673), (217, 9158209), (361, 5505073), (437, 4547669), (589, 3374077), (713, 2787281), (1103, 1801751), (2527, 786439), (3059, 649667), (4123, 482011), (4991, 398183), (7721, 257393), (8303, 239351), (11191, 177583), (13547, 146699), (20957, 94829), (25369, 78337), (34193, 58121)]