20838555

素因数分解:

$3^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{1489}}^1$

素因数の和:1811

約数の個数: 24

約数和(自身を含む): 36260640

約数和(自身を除く): 15422085

約数列:

[1, 3, 5, 9, 15, 45, 311, 933, 1489, 1555, 2799, 4467, 4665, 7445, 13401, 13995, 22335, 67005, 463079, 1389237, 2315395, 4167711, 6946185, 20838555]

約数ペア:

[(1, 20838555), (3, 6946185), (5, 4167711), (9, 2315395), (15, 1389237), (45, 463079), (311, 67005), (933, 22335), (1489, 13995), (1555, 13401), (2799, 7445), (4467, 4665)]