21081576

素因数分解:

$2^3\times 3^1\times {\mathrm{491}}^1\times {\mathrm{1789}}^1$

素因数の和:2289

約数の個数: 32

約数和(自身を含む): 52840800

約数和(自身を除く): 31759224

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 491, 982, 1473, 1789, 1964, 2946, 3578, 3928, 5367, 5892, 7156, 10734, 11784, 14312, 21468, 42936, 878399, 1756798, 2635197, 3513596, 5270394, 7027192, 10540788, 21081576]

約数ペア:

[(1, 21081576), (2, 10540788), (3, 7027192), (4, 5270394), (6, 3513596), (8, 2635197), (12, 1756798), (24, 878399), (491, 42936), (982, 21468), (1473, 14312), (1789, 11784), (1964, 10734), (2946, 7156), (3578, 5892), (3928, 5367)]