19991196

素因数分解:

$2^2\times 3^2\times {\mathrm{73}}^1\times {\mathrm{7607}}^1$

素因数の和:7690

約数の個数: 36

約数和(自身を含む): 51232272

約数和(自身を除く): 31241076

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 73, 146, 219, 292, 438, 657, 876, 1314, 2628, 7607, 15214, 22821, 30428, 45642, 68463, 91284, 136926, 273852, 555311, 1110622, 1665933, 2221244, 3331866, 4997799, 6663732, 9995598, 19991196]

約数ペア:

[(1, 19991196), (2, 9995598), (3, 6663732), (4, 4997799), (6, 3331866), (9, 2221244), (12, 1665933), (18, 1110622), (36, 555311), (73, 273852), (146, 136926), (219, 91284), (292, 68463), (438, 45642), (657, 30428), (876, 22821), (1314, 15214), (2628, 7607)]