18867355

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{2663}}^1$

素因数の和:2790

約数の個数: 16

約数和(自身を含む): 24615360

約数和(自身を除く): 5748005

約数列:

[1, 5, 13, 65, 109, 545, 1417, 2663, 7085, 13315, 34619, 173095, 290267, 1451335, 3773471, 18867355]

約数ペア:

[(1, 18867355), (5, 3773471), (13, 1451335), (65, 290267), (109, 173095), (545, 34619), (1417, 13315), (2663, 7085)]