19999213504

素因数分解:

$2^6\times {\mathrm{4721}}^1\times {\mathrm{66191}}^1$

素因数の和:70924

約数の個数: 28

約数和(自身を含む): 39694945248

約数和(自身を除く): 19695731744

約数列:

[1, 2, 4, 8, 16, 32, 64, 4721, 9442, 18884, 37768, 66191, 75536, 132382, 151072, 264764, 302144, 529528, 1059056, 2118112, 4236224, 312487711, 624975422, 1249950844, 2499901688, 4999803376, 9999606752, 19999213504]

約数ペア:

[(1, 19999213504), (2, 9999606752), (4, 4999803376), (8, 2499901688), (16, 1249950844), (32, 624975422), (64, 312487711), (4721, 4236224), (9442, 2118112), (18884, 1059056), (37768, 529528), (66191, 302144), (75536, 264764), (132382, 151072)]