21325635

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{107}}^1$

素因数の和:264

約数の個数: 48

約数和(自身を含む): 38548224

約数和(自身を除く): 17222589

約数列:

[1, 3, 5, 9, 15, 43, 45, 103, 107, 129, 215, 309, 321, 387, 515, 535, 645, 927, 963, 1545, 1605, 1935, 4429, 4601, 4635, 4815, 11021, 13287, 13803, 22145, 23005, 33063, 39861, 41409, 55105, 66435, 69015, 99189, 165315, 199305, 207045, 473903, 495945, 1421709, 2369515, 4265127, 7108545, 21325635]

約数ペア:

[(1, 21325635), (3, 7108545), (5, 4265127), (9, 2369515), (15, 1421709), (43, 495945), (45, 473903), (103, 207045), (107, 199305), (129, 165315), (215, 99189), (309, 69015), (321, 66435), (387, 55105), (515, 41409), (535, 39861), (645, 33063), (927, 23005), (963, 22145), (1545, 13803), (1605, 13287), (1935, 11021), (4429, 4815), (4601, 4635)]