55291221

素因数分解:

$3^3\times {\mathrm{617}}^1\times {\mathrm{3319}}^1$

素因数の和:3945

約数の個数: 16

約数和(自身を含む): 82070400

約数和(自身を除く): 26779179

約数列:

[1, 3, 9, 27, 617, 1851, 3319, 5553, 9957, 16659, 29871, 89613, 2047823, 6143469, 18430407, 55291221]

約数ペア:

[(1, 55291221), (3, 18430407), (9, 6143469), (27, 2047823), (617, 89613), (1851, 29871), (3319, 16659), (5553, 9957)]