21178000

素因数分解:

$2^4\times 5^3\times {\mathrm{10589}}^1$

素因数の和:10612

約数の個数: 40

約数和(自身を含む): 51213240

約数和(自身を除く): 30035240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 10589, 21178, 42356, 52945, 84712, 105890, 169424, 211780, 264725, 423560, 529450, 847120, 1058900, 1323625, 2117800, 2647250, 4235600, 5294500, 10589000, 21178000]

約数ペア:

[(1, 21178000), (2, 10589000), (4, 5294500), (5, 4235600), (8, 2647250), (10, 2117800), (16, 1323625), (20, 1058900), (25, 847120), (40, 529450), (50, 423560), (80, 264725), (100, 211780), (125, 169424), (200, 105890), (250, 84712), (400, 52945), (500, 42356), (1000, 21178), (2000, 10589)]