21604263

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{107}}^2$

素因数の和:271

約数の個数: 24

約数和(自身を含む): 31619952

約数和(自身を除く): 10015689

約数列:

[1, 3, 17, 37, 51, 107, 111, 321, 629, 1819, 1887, 3959, 5457, 11449, 11877, 34347, 67303, 194633, 201909, 423613, 583899, 1270839, 7201421, 21604263]

約数ペア:

[(1, 21604263), (3, 7201421), (17, 1270839), (37, 583899), (51, 423613), (107, 201909), (111, 194633), (321, 67303), (629, 34347), (1819, 11877), (1887, 11449), (3959, 5457)]