20512781361

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{1877}}^1\times {\mathrm{9413}}^1$

素因数の和:11342

約数の個数: 32

約数和(自身を含む): 31115905920

約数和(自身を除く): 10603124559

約数列:

[1, 3, 9, 27, 43, 129, 387, 1161, 1877, 5631, 9413, 16893, 28239, 50679, 80711, 84717, 242133, 254151, 404759, 726399, 1214277, 2179197, 3642831, 10928493, 17668201, 53004603, 159013809, 477041427, 759732643, 2279197929, 6837593787, 20512781361]

約数ペア:

[(1, 20512781361), (3, 6837593787), (9, 2279197929), (27, 759732643), (43, 477041427), (129, 159013809), (387, 53004603), (1161, 17668201), (1877, 10928493), (5631, 3642831), (9413, 2179197), (16893, 1214277), (28239, 726399), (50679, 404759), (80711, 254151), (84717, 242133)]