19548221

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{1999}}^1$

素因数の和:2144

約数の個数: 16

約数和(自身を含む): 24576000

約数和(自身を除く): 5027779

約数列:

[1, 7, 11, 77, 127, 889, 1397, 1999, 9779, 13993, 21989, 153923, 253873, 1777111, 2792603, 19548221]

約数ペア:

[(1, 19548221), (7, 2792603), (11, 1777111), (77, 253873), (127, 153923), (889, 21989), (1397, 13993), (1999, 9779)]