207221517

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{661}}^1\times {\mathrm{683}}^1$

素因数の和:1370

約数の個数: 32

約数和(自身を含む): 326021760

約数和(自身を除く): 118800243

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 661, 683, 1983, 2049, 5949, 6147, 11237, 11611, 17847, 18441, 33711, 34833, 101133, 104499, 303399, 313497, 451463, 1354389, 4063167, 7674871, 12189501, 23024613, 69073839, 207221517]

約数ペア:

[(1, 207221517), (3, 69073839), (9, 23024613), (17, 12189501), (27, 7674871), (51, 4063167), (153, 1354389), (459, 451463), (661, 313497), (683, 303399), (1983, 104499), (2049, 101133), (5949, 34833), (6147, 33711), (11237, 18441), (11611, 17847)]