21399010

素因数分解:

$2^1\times 5^1\times {\mathrm{373}}^1\times {\mathrm{5737}}^1$

素因数の和:6117

約数の個数: 16

約数和(自身を含む): 38628216

約数和(自身を除く): 17229206

約数列:

[1, 2, 5, 10, 373, 746, 1865, 3730, 5737, 11474, 28685, 57370, 2139901, 4279802, 10699505, 21399010]

約数ペア:

[(1, 21399010), (2, 10699505), (5, 4279802), (10, 2139901), (373, 57370), (746, 28685), (1865, 11474), (3730, 5737)]