31881201

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{1237}}^1$

素因数の和:1333

約数の個数: 24

約数和(自身を含む): 47420352

約数和(自身を除く): 15539151

約数列:

[1, 3, 11, 33, 71, 121, 213, 363, 781, 1237, 2343, 3711, 8591, 13607, 25773, 40821, 87827, 149677, 263481, 449031, 966097, 2898291, 10627067, 31881201]

約数ペア:

[(1, 31881201), (3, 10627067), (11, 2898291), (33, 966097), (71, 449031), (121, 263481), (213, 149677), (363, 87827), (781, 40821), (1237, 25773), (2343, 13607), (3711, 8591)]