81004539

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{449}}^1$

素因数の和:552

約数の個数: 48

約数和(自身を含む): 137894400

約数和(自身を除く): 56889861

約数列:

[1, 3, 7, 11, 21, 33, 71, 77, 121, 213, 231, 363, 449, 497, 781, 847, 1347, 1491, 2343, 2541, 3143, 4939, 5467, 8591, 9429, 14817, 16401, 25773, 31879, 34573, 54329, 60137, 95637, 103719, 162987, 180411, 223153, 350669, 380303, 669459, 1052007, 1140909, 2454683, 3857359, 7364049, 11572077, 27001513, 81004539]

約数ペア:

[(1, 81004539), (3, 27001513), (7, 11572077), (11, 7364049), (21, 3857359), (33, 2454683), (71, 1140909), (77, 1052007), (121, 669459), (213, 380303), (231, 350669), (363, 223153), (449, 180411), (497, 162987), (781, 103719), (847, 95637), (1347, 60137), (1491, 54329), (2343, 34573), (2541, 31879), (3143, 25773), (4939, 16401), (5467, 14817), (8591, 9429)]