18813399

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{67}}^2\times {\mathrm{127}}^1$

素因数の和:275

約数の個数: 24

約数和(自身を含む): 27998208

約数和(自身を除く): 9184809

約数列:

[1, 3, 11, 33, 67, 127, 201, 381, 737, 1397, 2211, 4191, 4489, 8509, 13467, 25527, 49379, 93599, 148137, 280797, 570103, 1710309, 6271133, 18813399]

約数ペア:

[(1, 18813399), (3, 6271133), (11, 1710309), (33, 570103), (67, 280797), (127, 148137), (201, 93599), (381, 49379), (737, 25527), (1397, 13467), (2211, 8509), (4191, 4489)]