20804905269

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{107}}^3$

素因数の和:384

約数の個数: 64

約数和(自身を含む): 33833376000

約数和(自身を除く): 13028470731

約数列:

[1, 3, 9, 17, 27, 37, 51, 107, 111, 153, 321, 333, 459, 629, 963, 999, 1819, 1887, 2889, 3959, 5457, 5661, 11449, 11877, 16371, 16983, 34347, 35631, 49113, 67303, 103041, 106893, 194633, 201909, 309123, 423613, 583899, 605727, 1225043, 1270839, 1751697, 1817181, 3675129, 3812517, 5255091, 7201421, 11025387, 11437551, 20825731, 21604263, 33076161, 45326591, 62477193, 64812789, 135979773, 187431579, 194438367, 407939319, 562294737, 770552047, 1223817957, 2311656141, 6934968423, 20804905269]

約数ペア:

[(1, 20804905269), (3, 6934968423), (9, 2311656141), (17, 1223817957), (27, 770552047), (37, 562294737), (51, 407939319), (107, 194438367), (111, 187431579), (153, 135979773), (321, 64812789), (333, 62477193), (459, 45326591), (629, 33076161), (963, 21604263), (999, 20825731), (1819, 11437551), (1887, 11025387), (2889, 7201421), (3959, 5255091), (5457, 3812517), (5661, 3675129), (11449, 1817181), (11877, 1751697), (16371, 1270839), (16983, 1225043), (34347, 605727), (35631, 583899), (49113, 423613), (67303, 309123), (103041, 201909), (106893, 194633)]