16402211

素因数分解:

$7^2\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1$

素因数の和:243

約数の個数: 24

約数和(自身を含む): 20013840

約数和(自身を除く): 3611629

約数列:

[1, 7, 37, 49, 83, 109, 259, 581, 763, 1813, 3071, 4033, 4067, 5341, 9047, 21497, 28231, 63329, 150479, 197617, 334739, 443303, 2343173, 16402211]

約数ペア:

[(1, 16402211), (7, 2343173), (37, 443303), (49, 334739), (83, 197617), (109, 150479), (259, 63329), (581, 28231), (763, 21497), (1813, 9047), (3071, 5341), (4033, 4067)]