19408190

素因数分解:

$2^1\times 5^1\times {\mathrm{439}}^1\times {\mathrm{4421}}^1$

素因数の和:4867

約数の個数: 16

約数和(自身を含む): 35022240

約数和(自身を除く): 15614050

約数列:

[1, 2, 5, 10, 439, 878, 2195, 4390, 4421, 8842, 22105, 44210, 1940819, 3881638, 9704095, 19408190]

約数ペア:

[(1, 19408190), (2, 9704095), (5, 3881638), (10, 1940819), (439, 44210), (878, 22105), (2195, 8842), (4390, 4421)]