20144046867

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{321569}}^1$

素因数の和:321755

約数の個数: 32

約数和(自身を含む): 32517158400

約数和(自身を除く): 12373111533

約数列:

[1, 3, 7, 19, 21, 57, 133, 157, 399, 471, 1099, 2983, 3297, 8949, 20881, 62643, 321569, 964707, 2250983, 6109811, 6752949, 18329433, 42768677, 50486333, 128306031, 151458999, 353404331, 959240327, 1060212993, 2877720981, 6714682289, 20144046867]

約数ペア:

[(1, 20144046867), (3, 6714682289), (7, 2877720981), (19, 1060212993), (21, 959240327), (57, 353404331), (133, 151458999), (157, 128306031), (399, 50486333), (471, 42768677), (1099, 18329433), (2983, 6752949), (3297, 6109811), (8949, 2250983), (20881, 964707), (62643, 321569)]