19218635

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{1259}}^1$

素因数の和:1378

約数の個数: 16

約数和(自身を含む): 23950080

約数和(自身を除く): 4731445

約数列:

[1, 5, 43, 71, 215, 355, 1259, 3053, 6295, 15265, 54137, 89389, 270685, 446945, 3843727, 19218635]

約数ペア:

[(1, 19218635), (5, 3843727), (43, 446945), (71, 270685), (215, 89389), (355, 54137), (1259, 15265), (3053, 6295)]