20825991

素因数分解:

$3^4\times {\mathrm{41}}^1\times {\mathrm{6271}}^1$

素因数の和:6324

約数の個数: 20

約数和(自身を含む): 31874304

約数和(自身を除く): 11048313

約数列:

[1, 3, 9, 27, 41, 81, 123, 369, 1107, 3321, 6271, 18813, 56439, 169317, 257111, 507951, 771333, 2313999, 6941997, 20825991]

約数ペア:

[(1, 20825991), (3, 6941997), (9, 2313999), (27, 771333), (41, 507951), (81, 257111), (123, 169317), (369, 56439), (1107, 18813), (3321, 6271)]