21422000

素因数分解:

$2^4\times 5^3\times {\mathrm{10711}}^1$

素因数の和:10734

約数の個数: 40

約数和(自身を含む): 51803232

約数和(自身を除く): 30381232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 10711, 21422, 42844, 53555, 85688, 107110, 171376, 214220, 267775, 428440, 535550, 856880, 1071100, 1338875, 2142200, 2677750, 4284400, 5355500, 10711000, 21422000]

約数ペア:

[(1, 21422000), (2, 10711000), (4, 5355500), (5, 4284400), (8, 2677750), (10, 2142200), (16, 1338875), (20, 1071100), (25, 856880), (40, 535550), (50, 428440), (80, 267775), (100, 214220), (125, 171376), (200, 107110), (250, 85688), (400, 53555), (500, 42844), (1000, 21422), (2000, 10711)]