21240608

素因数分解:

$2^5\times {\mathrm{67}}^1\times {\mathrm{9907}}^1$

素因数の和:9984

約数の個数: 24

約数和(自身を含む): 42445872

約数和(自身を除く): 21205264

約数列:

[1, 2, 4, 8, 16, 32, 67, 134, 268, 536, 1072, 2144, 9907, 19814, 39628, 79256, 158512, 317024, 663769, 1327538, 2655076, 5310152, 10620304, 21240608]

約数ペア:

[(1, 21240608), (2, 10620304), (4, 5310152), (8, 2655076), (16, 1327538), (32, 663769), (67, 317024), (134, 158512), (268, 79256), (536, 39628), (1072, 19814), (2144, 9907)]