19917588

素因数分解:

$2^2\times 3^1\times {\mathrm{139}}^1\times {\mathrm{11941}}^1$

素因数の和:12087

約数の個数: 24

約数和(自身を含む): 46812640

約数和(自身を除く): 26895052

約数列:

[1, 2, 3, 4, 6, 12, 139, 278, 417, 556, 834, 1668, 11941, 23882, 35823, 47764, 71646, 143292, 1659799, 3319598, 4979397, 6639196, 9958794, 19917588]

約数ペア:

[(1, 19917588), (2, 9958794), (3, 6639196), (4, 4979397), (6, 3319598), (12, 1659799), (139, 143292), (278, 71646), (417, 47764), (556, 35823), (834, 23882), (1668, 11941)]