2178221475

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{1708409}}^1$

素因数の和:1708439

約数の個数: 24

約数和(自身を含む): 3813171120

約数和(自身を除く): 1634949645

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 1708409, 5125227, 8542045, 25626135, 29042953, 42710225, 87128859, 128130675, 145214765, 435644295, 726073825, 2178221475]

約数ペア:

[(1, 2178221475), (3, 726073825), (5, 435644295), (15, 145214765), (17, 128130675), (25, 87128859), (51, 42710225), (75, 29042953), (85, 25626135), (255, 8542045), (425, 5125227), (1275, 1708409)]