19660417

素因数分解:

$7^3\times {\mathrm{31}}^1\times {\mathrm{43}}^2$

素因数の和:138

約数の個数: 24

約数和(自身を含む): 24230400

約数和(自身を除く): 4569983

約数列:

[1, 7, 31, 43, 49, 217, 301, 343, 1333, 1519, 1849, 2107, 9331, 10633, 12943, 14749, 57319, 65317, 90601, 401233, 457219, 634207, 2808631, 19660417]

約数ペア:

[(1, 19660417), (7, 2808631), (31, 634207), (43, 457219), (49, 401233), (217, 90601), (301, 65317), (343, 57319), (1333, 14749), (1519, 12943), (1849, 10633), (2107, 9331)]