81686529

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{159233}}^1$

素因数の和:159261

約数の個数: 16

約数和(自身を含む): 127387200

約数和(自身を除く): 45700671

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 159233, 477699, 1433097, 3025427, 4299291, 9076281, 27228843, 81686529]

約数ペア:

[(1, 81686529), (3, 27228843), (9, 9076281), (19, 4299291), (27, 3025427), (57, 1433097), (171, 477699), (513, 159233)]