20447385

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{1009}}^1$

素因数の和:1217

約数の個数: 32

約数和(自身を含む): 37620480

約数和(自身を除く): 17173095

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 193, 579, 965, 1009, 1351, 2895, 3027, 4053, 5045, 6755, 7063, 15135, 20265, 21189, 35315, 105945, 194737, 584211, 973685, 1363159, 2921055, 4089477, 6815795, 20447385]

約数ペア:

[(1, 20447385), (3, 6815795), (5, 4089477), (7, 2921055), (15, 1363159), (21, 973685), (35, 584211), (105, 194737), (193, 105945), (579, 35315), (965, 21189), (1009, 20265), (1351, 15135), (2895, 7063), (3027, 6755), (4053, 5045)]