21071547

素因数分解:

$3^2\times 7^1\times {\mathrm{193}}^1\times {\mathrm{1733}}^1$

素因数の和:1939

約数の個数: 24

約数和(自身を含む): 34985184

約数和(自身を除く): 13913637

約数列:

[1, 3, 7, 9, 21, 63, 193, 579, 1351, 1733, 1737, 4053, 5199, 12131, 12159, 15597, 36393, 109179, 334469, 1003407, 2341283, 3010221, 7023849, 21071547]

約数ペア:

[(1, 21071547), (3, 7023849), (7, 3010221), (9, 2341283), (21, 1003407), (63, 334469), (193, 109179), (579, 36393), (1351, 15597), (1733, 12159), (1737, 12131), (4053, 5199)]