21878050

素因数分解:

$2^1\times 5^2\times {\mathrm{569}}^1\times {\mathrm{769}}^1$

素因数の和:1350

約数の個数: 24

約数和(自身を含む): 40817700

約数和(自身を除く): 18939650

約数列:

[1, 2, 5, 10, 25, 50, 569, 769, 1138, 1538, 2845, 3845, 5690, 7690, 14225, 19225, 28450, 38450, 437561, 875122, 2187805, 4375610, 10939025, 21878050]

約数ペア:

[(1, 21878050), (2, 10939025), (5, 4375610), (10, 2187805), (25, 875122), (50, 437561), (569, 38450), (769, 28450), (1138, 19225), (1538, 14225), (2845, 7690), (3845, 5690)]