20775951

素因数分解:

$3^2\times 7^2\times {\mathrm{47111}}^1$

素因数の和:47131

約数の個数: 18

約数和(自身を含む): 34909992

約数和(自身を除く): 14134041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 47111, 141333, 329777, 423999, 989331, 2308439, 2967993, 6925317, 20775951]

約数ペア:

[(1, 20775951), (3, 6925317), (7, 2967993), (9, 2308439), (21, 989331), (49, 423999), (63, 329777), (147, 141333), (441, 47111)]