21330800

素因数分解:

$2^4\times 5^2\times {\mathrm{53327}}^1$

素因数の和:53345

約数の個数: 30

約数和(自身を含む): 51248208

約数和(自身を除く): 29917408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 53327, 106654, 213308, 266635, 426616, 533270, 853232, 1066540, 1333175, 2133080, 2666350, 4266160, 5332700, 10665400, 21330800]

約数ペア:

[(1, 21330800), (2, 10665400), (4, 5332700), (5, 4266160), (8, 2666350), (10, 2133080), (16, 1333175), (20, 1066540), (25, 853232), (40, 533270), (50, 426616), (80, 266635), (100, 213308), (200, 106654), (400, 53327)]