18724706

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{199}}^1$

素因数の和:279

約数の個数: 64

約数和(自身を含む): 38707200

約数和(自身を除く): 19982494

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 47, 77, 91, 94, 143, 154, 182, 199, 286, 329, 398, 517, 611, 658, 1001, 1034, 1222, 1393, 2002, 2189, 2587, 2786, 3619, 4277, 4378, 5174, 6721, 7238, 8554, 9353, 13442, 15323, 18109, 18706, 28457, 30646, 36218, 47047, 56914, 65471, 94094, 102883, 121589, 130942, 199199, 205766, 243178, 398398, 720181, 851123, 1337479, 1440362, 1702246, 2674958, 9362353, 18724706]

約数ペア:

[(1, 18724706), (2, 9362353), (7, 2674958), (11, 1702246), (13, 1440362), (14, 1337479), (22, 851123), (26, 720181), (47, 398398), (77, 243178), (91, 205766), (94, 199199), (143, 130942), (154, 121589), (182, 102883), (199, 94094), (286, 65471), (329, 56914), (398, 47047), (517, 36218), (611, 30646), (658, 28457), (1001, 18706), (1034, 18109), (1222, 15323), (1393, 13442), (2002, 9353), (2189, 8554), (2587, 7238), (2786, 6721), (3619, 5174), (4277, 4378)]