388646943

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{21991}}^1$

素因数の和:22174

約数の個数: 16

約数和(自身を含む): 534141696

約数和(自身を除く): 145494753

約数列:

[1, 3, 43, 129, 137, 411, 5891, 17673, 21991, 65973, 945613, 2836839, 3012767, 9038301, 129548981, 388646943]

約数ペア:

[(1, 388646943), (3, 129548981), (43, 9038301), (129, 3012767), (137, 2836839), (411, 945613), (5891, 65973), (17673, 21991)]