8378721

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1$

素因数の和:207

約数の個数: 40

約数和(自身を含む): 13789160

約数和(自身を除く): 5410439

約数列:

[1, 3, 9, 13, 27, 39, 73, 81, 109, 117, 219, 327, 351, 657, 949, 981, 1053, 1417, 1971, 2847, 2943, 4251, 5913, 7957, 8541, 8829, 12753, 23871, 25623, 38259, 71613, 76869, 103441, 114777, 214839, 310323, 644517, 930969, 2792907, 8378721]

約数ペア:

[(1, 8378721), (3, 2792907), (9, 930969), (13, 644517), (27, 310323), (39, 214839), (73, 114777), (81, 103441), (109, 76869), (117, 71613), (219, 38259), (327, 25623), (351, 23871), (657, 12753), (949, 8829), (981, 8541), (1053, 7957), (1417, 5913), (1971, 4251), (2847, 2943)]