19871724

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^1\times {\mathrm{71999}}^1$

素因数の和:72029

約数の個数: 24

約数和(自身を含む): 48384000

約数和(自身を除く): 28512276

約数列:

[1, 2, 3, 4, 6, 12, 23, 46, 69, 92, 138, 276, 71999, 143998, 215997, 287996, 431994, 863988, 1655977, 3311954, 4967931, 6623908, 9935862, 19871724]

約数ペア:

[(1, 19871724), (2, 9935862), (3, 6623908), (4, 4967931), (6, 3311954), (12, 1655977), (23, 863988), (46, 431994), (69, 287996), (92, 215997), (138, 143998), (276, 71999)]