21624880

素因数分解:

$2^4\times 5^1\times {\mathrm{270311}}^1$

素因数の和:270324

約数の個数: 20

約数和(自身を含む): 50278032

約数和(自身を除く): 28653152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 270311, 540622, 1081244, 1351555, 2162488, 2703110, 4324976, 5406220, 10812440, 21624880]

約数ペア:

[(1, 21624880), (2, 10812440), (4, 5406220), (5, 4324976), (8, 2703110), (10, 2162488), (16, 1351555), (20, 1081244), (40, 540622), (80, 270311)]