18537903

素因数分解:

$3^4\times {\mathrm{79}}^1\times {\mathrm{2897}}^1$

素因数の和:2988

約数の個数: 20

約数和(自身を含む): 28052640

約数和(自身を除く): 9514737

約数列:

[1, 3, 9, 27, 79, 81, 237, 711, 2133, 2897, 6399, 8691, 26073, 78219, 228863, 234657, 686589, 2059767, 6179301, 18537903]

約数ペア:

[(1, 18537903), (3, 6179301), (9, 2059767), (27, 686589), (79, 234657), (81, 228863), (237, 78219), (711, 26073), (2133, 8691), (2897, 6399)]