81217539

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{3259}}^1$

素因数の和:3352

約数の個数: 32

約数和(自身を含む): 131443200

約数和(自身を除く): 50225661

約数列:

[1, 3, 9, 13, 27, 39, 71, 117, 213, 351, 639, 923, 1917, 2769, 3259, 8307, 9777, 24921, 29331, 42367, 87993, 127101, 231389, 381303, 694167, 1143909, 2082501, 3008057, 6247503, 9024171, 27072513, 81217539]

約数ペア:

[(1, 81217539), (3, 27072513), (9, 9024171), (13, 6247503), (27, 3008057), (39, 2082501), (71, 1143909), (117, 694167), (213, 381303), (351, 231389), (639, 127101), (923, 87993), (1917, 42367), (2769, 29331), (3259, 24921), (8307, 9777)]