28665441

素因数分解:

$3^3\times 7^2\times {\mathrm{47}}^1\times {\mathrm{461}}^1$

素因数の和:531

約数の個数: 48

約数和(自身を含む): 50561280

約数和(自身を除く): 21895839

約数列:

[1, 3, 7, 9, 21, 27, 47, 49, 63, 141, 147, 189, 329, 423, 441, 461, 987, 1269, 1323, 1383, 2303, 2961, 3227, 4149, 6909, 8883, 9681, 12447, 20727, 21667, 22589, 29043, 62181, 65001, 67767, 87129, 151669, 195003, 203301, 455007, 585009, 609903, 1061683, 1365021, 3185049, 4095063, 9555147, 28665441]

約数ペア:

[(1, 28665441), (3, 9555147), (7, 4095063), (9, 3185049), (21, 1365021), (27, 1061683), (47, 609903), (49, 585009), (63, 455007), (141, 203301), (147, 195003), (189, 151669), (329, 87129), (423, 67767), (441, 65001), (461, 62181), (987, 29043), (1269, 22589), (1323, 21667), (1383, 20727), (2303, 12447), (2961, 9681), (3227, 8883), (4149, 6909)]