21236656

素因数分解:

$2^4\times 7^1\times {\mathrm{189613}}^1$

素因数の和:189628

約数の個数: 20

約数和(自身を含む): 47024272

約数和(自身を除く): 25787616

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 189613, 379226, 758452, 1327291, 1516904, 2654582, 3033808, 5309164, 10618328, 21236656]

約数ペア:

[(1, 21236656), (2, 10618328), (4, 5309164), (7, 3033808), (8, 2654582), (14, 1516904), (16, 1327291), (28, 758452), (56, 379226), (112, 189613)]