19963888

素因数分解:

$2^4\times 7^1\times {\mathrm{178249}}^1$

素因数の和:178264

約数の個数: 20

約数和(自身を含む): 44206000

約数和(自身を除く): 24242112

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 178249, 356498, 712996, 1247743, 1425992, 2495486, 2851984, 4990972, 9981944, 19963888]

約数ペア:

[(1, 19963888), (2, 9981944), (4, 4990972), (7, 2851984), (8, 2495486), (14, 1425992), (16, 1247743), (28, 712996), (56, 356498), (112, 178249)]