21000819836

素因数分解:

$2^2\times {\mathrm{937}}^1\times {\mathrm{5603207}}^1$

素因数の和:5604148

約数の個数: 12

約数和(自身を含む): 36790663728

約数和(自身を除く): 15789843892

約数列:

[1, 2, 4, 937, 1874, 3748, 5603207, 11206414, 22412828, 5250204959, 10500409918, 21000819836]

約数ペア:

[(1, 21000819836), (2, 10500409918), (4, 5250204959), (937, 22412828), (1874, 11206414), (3748, 5603207)]