18680963

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{1171}}^1$

素因数の和:1274

約数の個数: 16

約数和(自身を含む): 22277376

約数和(自身を除く): 3596413

約数列:

[1, 7, 43, 53, 301, 371, 1171, 2279, 8197, 15953, 50353, 62063, 352471, 434441, 2668709, 18680963]

約数ペア:

[(1, 18680963), (7, 2668709), (43, 434441), (53, 352471), (301, 62063), (371, 50353), (1171, 15953), (2279, 8197)]