27378729

素因数分解:

$3^4\times 7^1\times {\mathrm{109}}^1\times {\mathrm{443}}^1$

素因数の和:571

約数の個数: 40

約数和(自身を含む): 47277120

約数和(自身を除く): 19898391

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 109, 189, 327, 443, 567, 763, 981, 1329, 2289, 2943, 3101, 3987, 6867, 8829, 9303, 11961, 20601, 27909, 35883, 48287, 61803, 83727, 144861, 251181, 338009, 434583, 1014027, 1303749, 3042081, 3911247, 9126243, 27378729]

約数ペア:

[(1, 27378729), (3, 9126243), (7, 3911247), (9, 3042081), (21, 1303749), (27, 1014027), (63, 434583), (81, 338009), (109, 251181), (189, 144861), (327, 83727), (443, 61803), (567, 48287), (763, 35883), (981, 27909), (1329, 20601), (2289, 11961), (2943, 9303), (3101, 8829), (3987, 6867)]