21091336609

素因数分解:

$7^2\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{55619}}^1$

素因数の和:55813

約数の個数: 24

約数和(自身を含む): 25109092800

約数和(自身を除く): 4017756191

約数列:

[1, 7, 49, 71, 109, 497, 763, 3479, 5341, 7739, 54173, 55619, 379211, 389333, 2725331, 3948949, 6062471, 27642643, 42437297, 193498501, 297061079, 430435441, 3013048087, 21091336609]

約数ペア:

[(1, 21091336609), (7, 3013048087), (49, 430435441), (71, 297061079), (109, 193498501), (497, 42437297), (763, 27642643), (3479, 6062471), (5341, 3948949), (7739, 2725331), (54173, 389333), (55619, 379211)]