20847045

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{32321}}^1$

素因数の和:32372

約数の個数: 16

約数和(自身を含む): 34132032

約数和(自身を除く): 13284987

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 32321, 96963, 161605, 484815, 1389803, 4169409, 6949015, 20847045]

約数ペア:

[(1, 20847045), (3, 6949015), (5, 4169409), (15, 1389803), (43, 484815), (129, 161605), (215, 96963), (645, 32321)]