8427393

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 14676480

約数和(自身を除く): 6249087

約数列:

[1, 3, 9, 13, 17, 19, 39, 51, 57, 117, 153, 171, 221, 223, 247, 323, 663, 669, 741, 969, 1989, 2007, 2223, 2899, 2907, 3791, 4199, 4237, 8697, 11373, 12597, 12711, 26091, 34119, 37791, 38133, 49283, 55081, 72029, 147849, 165243, 216087, 443547, 495729, 648261, 936377, 2809131, 8427393]

約数ペア:

[(1, 8427393), (3, 2809131), (9, 936377), (13, 648261), (17, 495729), (19, 443547), (39, 216087), (51, 165243), (57, 147849), (117, 72029), (153, 55081), (171, 49283), (221, 38133), (223, 37791), (247, 34119), (323, 26091), (663, 12711), (669, 12597), (741, 11373), (969, 8697), (1989, 4237), (2007, 4199), (2223, 3791), (2899, 2907)]