19009904

素因数分解:

$2^4\times {\mathrm{499}}^1\times {\mathrm{2381}}^1$

素因数の和:2888

約数の個数: 20

約数和(自身を含む): 36921000

約数和(自身を除く): 17911096

約数列:

[1, 2, 4, 8, 16, 499, 998, 1996, 2381, 3992, 4762, 7984, 9524, 19048, 38096, 1188119, 2376238, 4752476, 9504952, 19009904]

約数ペア:

[(1, 19009904), (2, 9504952), (4, 4752476), (8, 2376238), (16, 1188119), (499, 38096), (998, 19048), (1996, 9524), (2381, 7984), (3992, 4762)]