40405887

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{1709}}^1$

素因数の和:1823

約数の個数: 24

約数和(自身を含む): 60821280

約数和(自身を除く): 20415393

約数列:

[1, 3, 9, 37, 71, 111, 213, 333, 639, 1709, 2627, 5127, 7881, 15381, 23643, 63233, 121339, 189699, 364017, 569097, 1092051, 4489543, 13468629, 40405887]

約数ペア:

[(1, 40405887), (3, 13468629), (9, 4489543), (37, 1092051), (71, 569097), (111, 364017), (213, 189699), (333, 121339), (639, 63233), (1709, 23643), (2627, 15381), (5127, 7881)]