21207084

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{563}}^1$

素因数の和:686

約数の個数: 48

約数和(自身を含む): 51418752

約数和(自身を除く): 30211668

約数列:

[1, 2, 3, 4, 6, 12, 43, 73, 86, 129, 146, 172, 219, 258, 292, 438, 516, 563, 876, 1126, 1689, 2252, 3139, 3378, 6278, 6756, 9417, 12556, 18834, 24209, 37668, 41099, 48418, 72627, 82198, 96836, 123297, 145254, 164396, 246594, 290508, 493188, 1767257, 3534514, 5301771, 7069028, 10603542, 21207084]

約数ペア:

[(1, 21207084), (2, 10603542), (3, 7069028), (4, 5301771), (6, 3534514), (12, 1767257), (43, 493188), (73, 290508), (86, 246594), (129, 164396), (146, 145254), (172, 123297), (219, 96836), (258, 82198), (292, 72627), (438, 48418), (516, 41099), (563, 37668), (876, 24209), (1126, 18834), (1689, 12556), (2252, 9417), (3139, 6756), (3378, 6278)]