205657977

素因数分解:

$3^1\times 7^1\times {\mathrm{521}}^1\times {\mathrm{18797}}^1$

素因数の和:19328

約数の個数: 16

約数和(自身を含む): 314001792

約数和(自身を除く): 108343815

約数列:

[1, 3, 7, 21, 521, 1563, 3647, 10941, 18797, 56391, 131579, 394737, 9793237, 29379711, 68552659, 205657977]

約数ペア:

[(1, 205657977), (3, 68552659), (7, 29379711), (21, 9793237), (521, 394737), (1563, 131579), (3647, 56391), (10941, 18797)]