20865951

素因数分解:

$3^3\times {\mathrm{83}}^1\times {\mathrm{9311}}^1$

素因数の和:9403

約数の個数: 16

約数和(自身を含む): 31288320

約数和(自身を除く): 10422369

約数列:

[1, 3, 9, 27, 83, 249, 747, 2241, 9311, 27933, 83799, 251397, 772813, 2318439, 6955317, 20865951]

約数ペア:

[(1, 20865951), (3, 6955317), (9, 2318439), (27, 772813), (83, 251397), (249, 83799), (747, 27933), (2241, 9311)]