21136428

素因数分解:

$2^2\times 3^2\times {\mathrm{587123}}^1$

素因数の和:587133

約数の個数: 18

約数和(自身を含む): 53428284

約数和(自身を除く): 32291856

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 587123, 1174246, 1761369, 2348492, 3522738, 5284107, 7045476, 10568214, 21136428]

約数ペア:

[(1, 21136428), (2, 10568214), (3, 7045476), (4, 5284107), (6, 3522738), (9, 2348492), (12, 1761369), (18, 1174246), (36, 587123)]