21046280

素因数分解:

$2^3\times 5^1\times {\mathrm{526157}}^1$

素因数の和:526168

約数の個数: 16

約数和(自身を含む): 47354220

約数和(自身を除く): 26307940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 526157, 1052314, 2104628, 2630785, 4209256, 5261570, 10523140, 21046280]

約数ペア:

[(1, 21046280), (2, 10523140), (4, 5261570), (5, 4209256), (8, 2630785), (10, 2104628), (20, 1052314), (40, 526157)]