639213039

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{6359}}^1$

素因数の和:6461

約数の個数: 40

約数和(自身を含む): 1025053920

約数和(自身を除く): 385840881

約数列:

[1, 3, 9, 17, 27, 51, 73, 81, 153, 219, 459, 657, 1241, 1377, 1971, 3723, 5913, 6359, 11169, 19077, 33507, 57231, 100521, 108103, 171693, 324309, 464207, 515079, 972927, 1392621, 2918781, 4177863, 7891519, 8756343, 12533589, 23674557, 37600767, 71023671, 213071013, 639213039]

約数ペア:

[(1, 639213039), (3, 213071013), (9, 71023671), (17, 37600767), (27, 23674557), (51, 12533589), (73, 8756343), (81, 7891519), (153, 4177863), (219, 2918781), (459, 1392621), (657, 972927), (1241, 515079), (1377, 464207), (1971, 324309), (3723, 171693), (5913, 108103), (6359, 100521), (11169, 57231), (19077, 33507)]