199163187

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{641}}^1$

素因数の和:768

約数の個数: 48

約数和(自身を含む): 320486400

約数和(自身を除く): 121323213

約数列:

[1, 3, 9, 19, 23, 57, 69, 79, 171, 207, 237, 437, 641, 711, 1311, 1501, 1817, 1923, 3933, 4503, 5451, 5769, 12179, 13509, 14743, 16353, 34523, 36537, 44229, 50639, 103569, 109611, 132687, 151917, 280117, 310707, 455751, 840351, 962141, 1164697, 2521053, 2886423, 3494091, 8659269, 10482273, 22129243, 66387729, 199163187]

約数ペア:

[(1, 199163187), (3, 66387729), (9, 22129243), (19, 10482273), (23, 8659269), (57, 3494091), (69, 2886423), (79, 2521053), (171, 1164697), (207, 962141), (237, 840351), (437, 455751), (641, 310707), (711, 280117), (1311, 151917), (1501, 132687), (1817, 109611), (1923, 103569), (3933, 50639), (4503, 44229), (5451, 36537), (5769, 34523), (12179, 16353), (13509, 14743)]