81009981

素因数分解:

$3^2\times {\mathrm{13}}^3\times {\mathrm{17}}^1\times {\mathrm{241}}^1$

素因数の和:303

約数の個数: 48

約数和(自身を含む): 134774640

約数和(自身を除く): 53764659

約数列:

[1, 3, 9, 13, 17, 39, 51, 117, 153, 169, 221, 241, 507, 663, 723, 1521, 1989, 2169, 2197, 2873, 3133, 4097, 6591, 8619, 9399, 12291, 19773, 25857, 28197, 36873, 37349, 40729, 53261, 112047, 122187, 159783, 336141, 366561, 479349, 529477, 692393, 1588431, 2077179, 4765293, 6231537, 9001109, 27003327, 81009981]

約数ペア:

[(1, 81009981), (3, 27003327), (9, 9001109), (13, 6231537), (17, 4765293), (39, 2077179), (51, 1588431), (117, 692393), (153, 529477), (169, 479349), (221, 366561), (241, 336141), (507, 159783), (663, 122187), (723, 112047), (1521, 53261), (1989, 40729), (2169, 37349), (2197, 36873), (2873, 28197), (3133, 25857), (4097, 19773), (6591, 12291), (8619, 9399)]