21342400

素因数分解:

$2^6\times 5^2\times {\mathrm{13339}}^1$

素因数の和:13361

約数の個数: 42

約数和(自身を含む): 52519580

約数和(自身を除く): 31177180

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 800, 1600, 13339, 26678, 53356, 66695, 106712, 133390, 213424, 266780, 333475, 426848, 533560, 666950, 853696, 1067120, 1333900, 2134240, 2667800, 4268480, 5335600, 10671200, 21342400]

約数ペア:

[(1, 21342400), (2, 10671200), (4, 5335600), (5, 4268480), (8, 2667800), (10, 2134240), (16, 1333900), (20, 1067120), (25, 853696), (32, 666950), (40, 533560), (50, 426848), (64, 333475), (80, 266780), (100, 213424), (160, 133390), (200, 106712), (320, 66695), (400, 53356), (800, 26678), (1600, 13339)]