21461128

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{4799}}^1$

素因数の和:4861

約数の個数: 32

約数和(自身を含む): 44352000

約数和(自身を除く): 22890872

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 86, 104, 172, 344, 559, 1118, 2236, 4472, 4799, 9598, 19196, 38392, 62387, 124774, 206357, 249548, 412714, 499096, 825428, 1650856, 2682641, 5365282, 10730564, 21461128]

約数ペア:

[(1, 21461128), (2, 10730564), (4, 5365282), (8, 2682641), (13, 1650856), (26, 825428), (43, 499096), (52, 412714), (86, 249548), (104, 206357), (172, 124774), (344, 62387), (559, 38392), (1118, 19196), (2236, 9598), (4472, 4799)]