81195723

素因数分解:

$3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{683}}^1$

素因数の和:753

約数の個数: 64

約数和(自身を含む): 149713920

約数和(自身を除く): 68518197

約数列:

[1, 3, 7, 9, 17, 21, 27, 37, 51, 63, 111, 119, 153, 189, 259, 333, 357, 459, 629, 683, 777, 999, 1071, 1887, 2049, 2331, 3213, 4403, 4781, 5661, 6147, 6993, 11611, 13209, 14343, 16983, 18441, 25271, 34833, 39627, 43029, 75813, 81277, 104499, 118881, 129087, 176897, 227439, 243831, 313497, 429607, 530691, 682317, 731493, 1288821, 1592073, 2194479, 3007249, 3866463, 4776219, 9021747, 11599389, 27065241, 81195723]

約数ペア:

[(1, 81195723), (3, 27065241), (7, 11599389), (9, 9021747), (17, 4776219), (21, 3866463), (27, 3007249), (37, 2194479), (51, 1592073), (63, 1288821), (111, 731493), (119, 682317), (153, 530691), (189, 429607), (259, 313497), (333, 243831), (357, 227439), (459, 176897), (629, 129087), (683, 118881), (777, 104499), (999, 81277), (1071, 75813), (1887, 43029), (2049, 39627), (2331, 34833), (3213, 25271), (4403, 18441), (4781, 16983), (5661, 14343), (6147, 13209), (6993, 11611)]