81697221

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{1543}}^1$

素因数の和:1642

約数の個数: 32

約数和(自身を含む): 126731520

約数和(自身を除く): 45034299

約数列:

[1, 3, 9, 27, 37, 53, 111, 159, 333, 477, 999, 1431, 1543, 1961, 4629, 5883, 13887, 17649, 41661, 52947, 57091, 81779, 171273, 245337, 513819, 736011, 1541457, 2208033, 3025823, 9077469, 27232407, 81697221]

約数ペア:

[(1, 81697221), (3, 27232407), (9, 9077469), (27, 3025823), (37, 2208033), (53, 1541457), (111, 736011), (159, 513819), (333, 245337), (477, 171273), (999, 81779), (1431, 57091), (1543, 52947), (1961, 41661), (4629, 17649), (5883, 13887)]