7642971

素因数分解:

$3^3\times 7^2\times {\mathrm{53}}^1\times {\mathrm{109}}^1$

素因数の和:185

約数の個数: 48

約数和(自身を含む): 13543200

約数和(自身を除く): 5900229

約数列:

[1, 3, 7, 9, 21, 27, 49, 53, 63, 109, 147, 159, 189, 327, 371, 441, 477, 763, 981, 1113, 1323, 1431, 2289, 2597, 2943, 3339, 5341, 5777, 6867, 7791, 10017, 16023, 17331, 20601, 23373, 40439, 48069, 51993, 70119, 121317, 144207, 155979, 283073, 363951, 849219, 1091853, 2547657, 7642971]

約数ペア:

[(1, 7642971), (3, 2547657), (7, 1091853), (9, 849219), (21, 363951), (27, 283073), (49, 155979), (53, 144207), (63, 121317), (109, 70119), (147, 51993), (159, 48069), (189, 40439), (327, 23373), (371, 20601), (441, 17331), (477, 16023), (763, 10017), (981, 7791), (1113, 6867), (1323, 5777), (1431, 5341), (2289, 3339), (2597, 2943)]