20214279

素因数分解:

$3^4\times {\mathrm{479}}^1\times {\mathrm{521}}^1$

素因数の和:1012

約数の個数: 20

約数和(自身を含む): 30317760

約数和(自身を除く): 10103481

約数列:

[1, 3, 9, 27, 81, 479, 521, 1437, 1563, 4311, 4689, 12933, 14067, 38799, 42201, 249559, 748677, 2246031, 6738093, 20214279]

約数ペア:

[(1, 20214279), (3, 6738093), (9, 2246031), (27, 748677), (81, 249559), (479, 42201), (521, 38799), (1437, 14067), (1563, 12933), (4311, 4689)]