20199963

素因数分解:

$3^1\times 7^1\times {\mathrm{617}}^1\times {\mathrm{1559}}^1$

素因数の和:2186

約数の個数: 16

約数和(自身を含む): 30850560

約数和(自身を除く): 10650597

約数列:

[1, 3, 7, 21, 617, 1559, 1851, 4319, 4677, 10913, 12957, 32739, 961903, 2885709, 6733321, 20199963]

約数ペア:

[(1, 20199963), (3, 6733321), (7, 2885709), (21, 961903), (617, 32739), (1559, 12957), (1851, 10913), (4319, 4677)]