21919198

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{4337}}^1$

素因数の和:4384

約数の個数: 24

約数和(自身を含む): 39666672

約数和(自身を除く): 17747474

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 361, 722, 2527, 4337, 5054, 8674, 30359, 60718, 82403, 164806, 576821, 1153642, 1565657, 3131314, 10959599, 21919198]

約数ペア:

[(1, 21919198), (2, 10959599), (7, 3131314), (14, 1565657), (19, 1153642), (38, 576821), (133, 164806), (266, 82403), (361, 60718), (722, 30359), (2527, 8674), (4337, 5054)]