21337600

素因数分解:

$2^9\times 5^2\times {\mathrm{1667}}^1$

素因数の和:1695

約数の個数: 60

約数和(自身を含む): 52897284

約数和(自身を除く): 31559684

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 512, 640, 800, 1280, 1600, 1667, 2560, 3200, 3334, 6400, 6668, 8335, 12800, 13336, 16670, 26672, 33340, 41675, 53344, 66680, 83350, 106688, 133360, 166700, 213376, 266720, 333400, 426752, 533440, 666800, 853504, 1066880, 1333600, 2133760, 2667200, 4267520, 5334400, 10668800, 21337600]

約数ペア:

[(1, 21337600), (2, 10668800), (4, 5334400), (5, 4267520), (8, 2667200), (10, 2133760), (16, 1333600), (20, 1066880), (25, 853504), (32, 666800), (40, 533440), (50, 426752), (64, 333400), (80, 266720), (100, 213376), (128, 166700), (160, 133360), (200, 106688), (256, 83350), (320, 66680), (400, 53344), (512, 41675), (640, 33340), (800, 26672), (1280, 16670), (1600, 13336), (1667, 12800), (2560, 8335), (3200, 6668), (3334, 6400)]