16440405

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{359}}^1$

素因数の和:481

約数の個数: 32

約数和(自身を含む): 27371520

約数和(自身を除く): 10931115

約数列:

[1, 3, 5, 15, 43, 71, 129, 213, 215, 355, 359, 645, 1065, 1077, 1795, 3053, 5385, 9159, 15265, 15437, 25489, 45795, 46311, 76467, 77185, 127445, 231555, 382335, 1096027, 3288081, 5480135, 16440405]

約数ペア:

[(1, 16440405), (3, 5480135), (5, 3288081), (15, 1096027), (43, 382335), (71, 231555), (129, 127445), (213, 77185), (215, 76467), (355, 46311), (359, 45795), (645, 25489), (1065, 15437), (1077, 15265), (1795, 9159), (3053, 5385)]