21787756879

素因数分解:

$7^1\times {\mathrm{73}}^1\times {\mathrm{449}}^1\times {\mathrm{94961}}^1$

素因数の和:95490

約数の個数: 16

約数和(自身を含む): 25297876800

約数和(自身を除く): 3510119921

約数列:

[1, 7, 73, 449, 511, 3143, 32777, 94961, 229439, 664727, 6932153, 42637489, 48525071, 298462423, 3112536697, 21787756879]

約数ペア:

[(1, 21787756879), (7, 3112536697), (73, 298462423), (449, 48525071), (511, 42637489), (3143, 6932153), (32777, 664727), (94961, 229439)]