991888

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{1319}}^1$

素因数の和:1374

約数の個数: 20

約数和(自身を含む): 1964160

約数和(自身を除く): 972272

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 376, 752, 1319, 2638, 5276, 10552, 21104, 61993, 123986, 247972, 495944, 991888]

約数ペア:

[(1, 991888), (2, 495944), (4, 247972), (8, 123986), (16, 61993), (47, 21104), (94, 10552), (188, 5276), (376, 2638), (752, 1319)]