27821775

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{21821}}^1$

素因数の和:21851

約数の個数: 24

約数和(自身を含む): 48706704

約数和(自身を除く): 20884929

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 21821, 65463, 109105, 327315, 370957, 545525, 1112871, 1636575, 1854785, 5564355, 9273925, 27821775]

約数ペア:

[(1, 27821775), (3, 9273925), (5, 5564355), (15, 1854785), (17, 1636575), (25, 1112871), (51, 545525), (75, 370957), (85, 327315), (255, 109105), (425, 65463), (1275, 21821)]