18612993

素因数分解:

$3^1\times 7^2\times {\mathrm{127}}^1\times {\mathrm{997}}^1$

素因数の和:1141

約数の個数: 24

約数和(自身を含む): 29125632

約数和(自身を除く): 10512639

約数列:

[1, 3, 7, 21, 49, 127, 147, 381, 889, 997, 2667, 2991, 6223, 6979, 18669, 20937, 48853, 126619, 146559, 379857, 886333, 2658999, 6204331, 18612993]

約数ペア:

[(1, 18612993), (3, 6204331), (7, 2658999), (21, 886333), (49, 379857), (127, 146559), (147, 126619), (381, 48853), (889, 20937), (997, 18669), (2667, 6979), (2991, 6223)]