19994613

素因数分解:

$3^1\times {\mathrm{23}}^2\times {\mathrm{43}}^1\times {\mathrm{293}}^1$

素因数の和:385

約数の個数: 24

約数和(自身を含む): 28614432

約数和(自身を除く): 8619819

約数列:

[1, 3, 23, 43, 69, 129, 293, 529, 879, 989, 1587, 2967, 6739, 12599, 20217, 22747, 37797, 68241, 154997, 289777, 464991, 869331, 6664871, 19994613]

約数ペア:

[(1, 19994613), (3, 6664871), (23, 869331), (43, 464991), (69, 289777), (129, 154997), (293, 68241), (529, 37797), (879, 22747), (989, 20217), (1587, 12599), (2967, 6739)]