21047200

素因数分解:

$2^5\times 5^2\times {\mathrm{26309}}^1$

素因数の和:26329

約数の個数: 36

約数和(自身を含む): 51383430

約数和(自身を除く): 30336230

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 26309, 52618, 105236, 131545, 210472, 263090, 420944, 526180, 657725, 841888, 1052360, 1315450, 2104720, 2630900, 4209440, 5261800, 10523600, 21047200]

約数ペア:

[(1, 21047200), (2, 10523600), (4, 5261800), (5, 4209440), (8, 2630900), (10, 2104720), (16, 1315450), (20, 1052360), (25, 841888), (32, 657725), (40, 526180), (50, 420944), (80, 263090), (100, 210472), (160, 131545), (200, 105236), (400, 52618), (800, 26309)]