646429563

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{425003}}^1$

素因数の和:425035

約数の個数: 18

約数和(自身を含む): 1011084516

約数和(自身を除く): 364654953

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 425003, 1275009, 3825027, 5525039, 16575117, 49725351, 71825507, 215476521, 646429563]

約数ペア:

[(1, 646429563), (3, 215476521), (9, 71825507), (13, 49725351), (39, 16575117), (117, 5525039), (169, 3825027), (507, 1275009), (1521, 425003)]