81319917

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^2\times {\mathrm{1753}}^1$

素因数の和:1857

約数の個数: 24

約数和(自身を含む): 126680896

約数和(自身を除く): 45360979

約数列:

[1, 3, 7, 21, 47, 141, 329, 987, 1753, 2209, 5259, 6627, 12271, 15463, 36813, 46389, 82391, 247173, 576737, 1730211, 3872377, 11617131, 27106639, 81319917]

約数ペア:

[(1, 81319917), (3, 27106639), (7, 11617131), (21, 3872377), (47, 1730211), (141, 576737), (329, 247173), (987, 82391), (1753, 46389), (2209, 36813), (5259, 15463), (6627, 12271)]