16865260

素因数分解:

$2^2\times 5^1\times {\mathrm{421}}^1\times {\mathrm{2003}}^1$

素因数の和:2433

約数の個数: 24

約数和(自身を含む): 35518896

約数和(自身を除く): 18653636

約数列:

[1, 2, 4, 5, 10, 20, 421, 842, 1684, 2003, 2105, 4006, 4210, 8012, 8420, 10015, 20030, 40060, 843263, 1686526, 3373052, 4216315, 8432630, 16865260]

約数ペア:

[(1, 16865260), (2, 8432630), (4, 4216315), (5, 3373052), (10, 1686526), (20, 843263), (421, 40060), (842, 20030), (1684, 10015), (2003, 8420), (2105, 8012), (4006, 4210)]